73 Dart Sport 318 to /6... help?

Hi everyone, I have a 73 Dart Sport builder, originally a 318/3-speed. I have a built slant six & 833 OD. I really don't want to change K frames as the only six cylinder one I'll have to use is a 69 with 9" drums etc. I want to keep the later suspension & brakes but get the six in there where it needs to be.

Mounts? Rigged mounts? Ears? Combos of stock parts? Adapter?

Advice & knowledge is MUCH appreciated, thanks in advance... "Why not put a V8 in" isn't the help I'm looking for. :) I know what I WANT to do, I just need info... love the forum, thanks again! ~Scott in TX