This probably needs to be a new topic, because it does not involve populating a Doodlebug. I'll be watching this project with interest, though. I've been wanting to add interiors to a set of MPC Milwaukee Road baby Madisons I have. I picked up a relatively recent set of Lionel Santa Fe baby Madisons some time ago, which cars (like all the more recent baby Madisons) came with interiors, six wheel diecast trucks and some other updates.
I've initially examined what will be involved in transplanting the interiors. It should be possible, although it will take a little surgery. But they're the right size and have proper seat arrangements, etc. The interior lighting will have to be re-arranged, also.
I'd like to transplant the 6-wheel trucks, too, but that looks like it would be a more significant undertaking that I'm not going to spend the time to attempt.
