I'm no pro but also researching turbo's , the TBird I believe used the very successful 2.3 liter four cylinder turbo setup. The high-revving smaller displacement 2.3 would probably optimally use a very different turbo application but depends on your expectations.
I'm researching which available turbo's of the name-brand (Garrett,Turbonetics, Precision...) and also "E-BAy" generic offshore knockoffs would work for a turbo-built 200/250. The Turbo Map is bible for figuring application but info is somewhat sketchy or non-existent on some turbo's. Complicating things is that the E-Bay offshore knockoffs use any false OEM description that will get search "hits".
On an aside: the T-Bird SuperCoupe uses 3.8 liter V6 with Supercharger that has been adapted for the six...
have fun and post pics!