/6 to 360 swap
Attached is a list I made during the conversion to a 318. I would recommend making a list like this, it helped me. And do your homework for items such as pulleys & brackets. Also V-belts, I waited till I had everything mocked up and then bought the belts. Since you are going with a 360 and 4-speed of course your list will be alot different than mine...... but this should give you an idea of what it takes.
Schumacher conversion mounts are the ONLY way to go in my opinion if not changing K-frames. It is worth the investment.
Hope this helps.