I think you would be pretty happy with either ported stockers or serval. The difference is only a couple hundred bucks as you are buying new cylinders anyway. The supporting mods are pretty much the same if you stick with 4mil stroke. All the stuff you just listed to a stock cyl build would apply to the serval. Same reeds, same pipes, same head shell, carbs, etc. All interchangeable. You would need different domes for the serval though. Not a big deal at all. I'm assuming you just wanna run whatever fuel you can get out the pump. That is where the serval picks up the slack. It makes the same performance as a high compression, lots of timing, ragged edge race fuel stock cylinder on pump fuel. Then you can apply those tricks to the serval and run it on race fuel and even take porting a bit farther and have a real handful.