RS2000 do you buy a 4door or a 2door?
4 door easier to get a good one 2 door harder to get?
( the red 4 door looks ok on ebay or wait for a good 2 door)

I dont think Id wait to find a preference. Id grab the first decent one that comes along. If you find a better one later or change your mind on 2door-4door you can always sell it and buy again, but nothing stings worse than the regret of having let a car go and wishing you didnt. There are more 4 door door trims out there but none are decent or the right colour or without speaker holes cut in them. You can buy brand new 2 door RS trims though.  I reckon 4 doors may become more collectible one day anyway because of the demand for 2 doors. The 4 doors may slip into obscurity and left to rot /stripped for parts due to their lesser demand and as such there may be a lot less of them in the future.......just my thoughts.....

There were less four doors made, variously reported as somewhere around 800 in total. They were Aus market only too so could possibly be the rarest form of MK2 RS2000s built globally

I got a 2 door just over a year ago. the body needs a bit of work (rust in usual places) but its registered (goes like the clappas as well) and I drive it once a month or so when I'm in town. it still turns heads everywhere! and to be honest in my opinion in the long term the 2 doors will become worth more as they are the ones that are sought after. but in all seriousness, if you aren't bothered 2 doors or 4... then just buy one you like and is in good condition!

look on RSOCVIC.com in the classifieds, there is a reasonable 2 door for $5k. would leave you money to do it up and get a nice 2 door!
 

If that was the silver 2DR then i bought it $4550 , 
 
 the 2dr mk2 RS was from what i am aware of was fords original intention to introduce affordable club rallying to the masses in the UK  , so from a purest point of view more desireable to own now ?
thats my personal opinion
 
Tony

there has always been this belief that because england only made 2 door RS2000's that our 4 door wasnt a "real" RS. Maybe that belief has played some part in 2 doors being more sought after . Who knows?  I think thats just people with 2 doors trying to fool themselves into thinking their car is a bit better than a 4 door. As another member said, there were less 4 doors made than 2 doors, so the question of rare/desirability I think is answered in that one fact. Anyways, there is a maybe-seller on this forum in nowra with a yellow 2 door in good original condition. Might be worth a look

If you're not overly fussed, do you have kids or intend to?  If so, the 4 door will win on practicality and the windows in the back of a 2 door don't wind down.  I have a 4 door, but if I didn't have kids I would have waited for a 2 door.

Throughout the late seventies & most of the eighties I thought along the lines of 2 door for racing, 4 door for wannabe commuters.
 
That was until I met Cortney in 1987, a slightly sullied 1980 4 door in factory original RS2000 only Midnight (for the uninitiated - black at night, blue in shaded sunlight, deep purple in direct sunlight). In my eyes she was simply sex on wheels. Over the next three years I pestered her second owner to sell her to me, crying tears of blood as her condition rapidly deteriorated.  Xmas 1989 he did the unthinkable - traded her in on a FWD white TX3. I near on laid rubber in my fire breathing (literally) 1310 weber fed Mini all the way to the dealer, finding her languishing on the back lot awaiting her fate. I sent the (un)suitably attired girlfriend into the office to enquire - with the sales team duly distracted and a four page list of faults I managed to hammer out a sweet deal and driver her away. 23 years later, still have Cortney in the garage, and the girlfriend has been my wife for 22 years and counting.
 
Moral of the story: there is no such thing as buying the 'wrong' RS2000 - go looking at both 2 & 4 doors, any colour, any condition - you may be surprised at what you drive home in.
 
And as to the debate if an Aussie RS2000 'real' RS - Ford saw fit to give them their own model number, 11918 for the 2 door and 11938 for the 4 door - can't get more real than that....
 
 
 

If it were my money, i'd buy kierans 75 2 door over any aussie RS. Only RS models here worth buying are the 25 German ones imported in 75/76.

2c worth of opinion well spent.