[LS short box]

I've used the LS7 lifters on a few builds with very good results.
A buddy of mine runs a cammed LS1 in 89 Camaro with a 3600 stall Yank billet converter and loves it. Similar to mine you can't really tell it's a stall converter until put the pedal down.
One question on the cam I would ask Tick is what it's idle vacuum is if you are going to run power brakes.
One other option for the heads would be L92 heads.