J ust doing a quick look see on the net didn't bring any good info... BUT, I wouldn't think this swap would be that difficult if you have any type of basic fabrication skills.
I will tell you up front to go with a V8 small block though. Parts are cheap and plentiful, an overdrive trans would be nice and I would stick with the stock rear if it's not broke. I'm not at all familiar with the Rambler chassis but I think a donor late 80's early 90's truck would be a good purchase and would get you most of the parts you need for this swap. Keep us informed.