If you want RV performance, why not build an RV? With careful
scrounging, I
believe it is still possible to build a -6 or -6a for $35k. You'd have to
find good deals on unfinished kits on the internet and TAP, wouldn't have a
fancy panel, and might have to go with a mid-time engine, but it can be
done.

I'm not anticipating anything fancy... basic engine stuff, handheld GPS,
navcom, and an integrated PFD kind of thing.


Beyond that, you could probably find a decent RV-4 for the same $35k. The
back seat isn't for big people, but it is a real 200 mph airplane that meets
your other criteria.

I'd rather build it myself for customization and for the repairman's
certificate.

Looking at your desires, you might also consider a Thorpe or a Mustang II.
They are usually underpriced when compared to similarly equipped RV's.

I never even thought of the Mustang...