Matey, if you just want to start getting back into it, before you make the investment on a new car, then by all means look at the ole Cougar.... there's a bit of a groundswell at the moment (a bit, not a lot) of interest in the older Schuey buggies, which means that resources (parts, bodies, etc) are becoming more easily available. There's a few of us refettling old Cougar2s, ProCats and TopCats, BossCats and Cat2000s.... so don't feel you need the Best to get back going. You can always take new batteries to a new car!!!!
If you need any 2000 parts, let me know and I'll pass your details onto a mate, who has a heap of C2000 stuff....
Alex