I found this turbo and was wondering if it would work on an '89. USED CORE TURBO BORG WARNER DEUTZ 07 04294366KZ S200G - eBay (item 160560306037 end time Apr-16-11 00:00:49 PDT) It has the same size wheel as a H1c but im not sure on the rest.

 

Probably, but why bother? I'd say it needs rebuilding, so say $50 for the rebuild kit, plus the $175 to buy it, plus whatever they had as shipping... $250 - $275. You can buy S300's, HE351's and HX Super 40's for close to that, and all 3 will bury that S200. Keep looking is my $0.02.