Twin Cam identification

Hi, had a look around the forum, cant see this info, hope there is the knowledge here.
 
I'm looking at a Twin Cam roller (to start a resto) and dont know how to tell from the numbers or chassis if it is a genuine TC. I know they have flared arches, 6 dial dash etc, what else should I look for.
 
Thanks.

they have rear radius bars
engine stabilizer mount on firewall
front sway bar mounts are different brake master bottle on top of firewall and remote booster mounted on passenger side
stone guard mounting bolts through boot floor
hydraulic clutch
some have 2 wiring harness connectors going through the firewall
accelerator cable comes out of firewall higher than standard escort
has reinforcing panel behind the six dial dash clocks

Thanks for the info, very handy, picking up my project this arvo. Found a 1970 Twin Cam with just about everything except engine and box, has a few new panels, badges, dash etc etc they were collecting to do the resto. Will restore it as a road car, now on the lookout for engine, gearbox, any out there ?
 
Spoke to a local lotus specialist and quoted @ $12k for recon engine, 7 for the engine, 5 for the recon. Is this in the ballpark ?
 
Thanks again

7 is too much for a second hand assembled twin cam.
 
There is no way you can quote a Twin cam rebuild, even when it's apart on the bench in front of you.
 
12 is in the ball park but in the real world it's 4 to buy one and 8 to build it into something that's decent.