The shift star helps with the shifting.
I run a lockup with no override transmission and I have no problem. I would recomend an Ez Pull lever though.
The nice thing about the lockup is you can tune it a little. I run 6 stock OEM springs with my lockup. It lets the clutch slip out of the hole. That keeps the RPM up and helps keep the front wheels down.
I like to drag race for fun, and I also have to be able to trail ride it. I built my banshee, 4mill stroker, patriot racing drag ported stock cylinders, cpi pipes on a stock length arm. The front end still comes up but the stock clutch springs with the lockup help.
Who ever you get the cover from make sure it is a direct drive diecast cover. It is a bran new casting. Much better way than milling off the top of a stock cover and welding or exoxying on the extension ring.
josh