Aftermarket drift stuff for E36s are just as easy to get for BMWs these days really.
And as a tramper, you'll find spares from any E36 in a scrapyard for peanuts to keep you going alot easier than trying to find some cheap used S13 or S14 parts.
an E36 can be abit heavy though so a 325/328 would be best but a 318iS will do you fine with plenty of pressure in the rear tyres :)

