Hello Tracer ;

Welcome to CHR , I'm building a 32 3 Win. also however I'm using Pontiac Fiero Buckets, I know you specified a bench but it's just an FYI, the cockpit in a 3 Window is quite narrow to begin with, a friend of mine built a 3 Win. last year and used a Mid bench seat out of a Chrysler mini van, their like a two person seat in the middle of the van , unlike the rear full seat, Town and Country ? maybe ? as previously mentioned you may have to cut the seat down, which is quite a common practice, strip the seat , cut it to you desired width, and your Upholster will handle the rest of building the seat back up, they'll use several different density's of foam and build the seat to your comfort level. Hope all works out for you, and we should have more replys to follow.

Good Luck !