/6 to V8 questions

I'm in your shoes. I've had Mopars for year but never did any of the work. I have a 68 Barracuda that had a slant six. If it was me, I'd keep the car you have because it is super clean. You don't have to do all the sheet metal work that can turn this into a much bigger project than you want to deal with. Schumacher engine mounts allow a direct bolt in for a SB V8. I've checked around on this forum and you will find members who have everything from 273s through 360s that they will sell and the deals are usually pretty good. Some come with a tranny. All you have to do is have it rebuilt to your specs, add the radiator and rear end, upgrade wheels and brakes, and you will have an awesome car. The more work you can do yourself, obviously the less it will cost. Keep checking with forum members here because many of them have already done what you're going to do, know the ins and outs and what not to do, and I have found they are happy to help other members. I like your car.