What rearend fits? 1969 longhorn

[67chevy_hotrod]

So I've got a 69' longhorn with a worn out eaton ho52 with 4:10's (another reason to switch, drive ability). Due to the fact that all the parts are more expensive and the brakes are an odd size.. I have justified the need to swap out the whole meal deal. I don't want the eaton so I don't want to hear people say swap to the 14 bolt brakes to solve the odd size issue. Not going too. I want it out. Preferably I would like a 14 bolt ff(cost is low and parts are easily obtained and brakes are more common), I have the ability to get one for 300 bucks, 3:73's from what I am told. It would need a basic overhaul i.e. Seals and brakes. However from my understanding it won't bolt right in. Is there any rearendeds that do bolt right in? Not worried about wms-wms width but I want to do as little modification as possible, rather not bug the perches and shock brackets. If I have to I will.. But I don't really wanna lol thanks In advance!