I have a (beloved) 89 v6 5 speed raider that is suffering from MI rust. I've patched the floors, rockers and frame in many places a few times now to keep it alive, but I fear I'm getting close to "nothing left to weld to" ... I have a 89' 2 door montero that is amazingly rust free from CA. Problem is this one was a 4 cyl 5 speed. I'd love to swap all the mechanicals from the v6 into it, but not sure how complex this will be. Worth the effort? I'm not a fabricator or mechanic, just a weekend warrior type - used to doing everything myself with what I have available...