You pretty much have figured it out. SBC= less hassle, more parts, many swap examples and info. BBC= not much hassle either, many of the same parts as SBC, lots of swap examples. All the rest is up to you. Some of them will be very expensive for nothing (348/409) but cool. Some way more hassle. There are a million opinions of it all. I like SBC and BBC. Everybody uses them for a reason. It's nonsense for someone to say they don't want to do it because everyone does.
Everyone has Nike shoes and a man bun. Hurst shifters. Murdered paint job. Piercings. Tattoos. LT1's.
Whatever floats your boat.
No other motors come anywhere close to the adaptability of the Chevy/GM motors to manual and auto transmissions, bell housings, clutches, motor mounts, carbs, speed parts, headers, valve covers..... Advantages include: 6 cyl and 8 cyl common parts, SBC and BBC have many of the same various bolt patterns, throughout many years.
No flames at you, just shade.
