Hi Mal,
so happy to hear your enthusiasm of having saved these precious Capris and all the parts........what a nightmare when you think what may have happened to them if they
didn't finish up in your hands ! Deano is right; take your time and make sure you have all the parts you need plus keep a 2nd Alternator and 2nd Starter for each car you know is restorable.
Since you have 3 cars, you'll thank yourself later if you bag and label each and every part and catalogue them.
Try and get them all into dry storage lest they perish any further; if you have no garage or shed to store them, lay enough bricks on the ground for each car and then build a simple "A" frame around it, cover with "Sisalation" and then any old corrugated iron if new is prohibitive.
All available at Builders Wrecking Yards.
I'm rambling on, sorry!............just ask for any advice........... Plenty of members here !