On the Banshee that's all there is.
It's all an after thought filling the non-existent oil pump left over from the street bike all those parts were originally cast for.
As in, it won't start immediately after installing those mods?
If so, check that the choke cross over hose is installed. also check the orange or black coil wires didn't get knocked loose.
Keep in mind with every step in grit, you have to remove ALL the scratches left by the previous grit. Work your way to at least 3000 then try heat or polish.
WAAAAY WAAAY WAAY WAY more trouble than it is worth. Time and materials... Better to buy new. Honest. But try a small spot (start to finish) UNDER a fender first.
If you are in Michigan, call Driveline Performance with what you're after and budget. The can set you up with all the parts you'll need. "Kit" if you prefer, (I hate that term)
And yes, stock carbs are more than adequate. If they're in good shape.
The air jet and the pilot jet are externally identical, Be sure the air jet (in the air horn) is a 1.6 (much bigger than a pilot), that is what draws air to draft fuel on start up.
Fuel in the pipes means it's flooded. It will run like crap until it burns it, if it will start at all.
And yes , stock jetting with those pipes will melt pistons before you know it.
What a mess. Cool heads do not use the factory tin gasket. Do you now if the domes are cut for a 4mil build? If not, That would be what the plate and extra gasket would for (I'd guess) Next problem, I've read that head and o-rings might not seal on 66.5 bore.
Yes the side cover holds the shaft "in" The pivot on the pawl that grabs the star is certainly loose and worn out. The fix is to buy a new shift shaft. F.A.S.T Racing sells a new OEM modded one that they grind a bit for more throw and tweak the end in for better contact with the star.