AMC 401 engine for my 1972 Duster

I live

and work in San Jose ... been here for over 4 years now
OK, which is it? I mean, You are in San Jose, but the car is still in Costa Rica? I'm all for hotrodding for gain, and if Your options are severely limited go for it, do what Ya
gotta do. But if there is any chance of getting a smallblock & trans for Your car out of a Mopar, You would be better served, & happier with the end result. I love some AMC's,
and would love to have an AMX w/a 401 in it.