http://www.lsmeng.com/

http://www.iskycams.com/RedZoneAdLR2.pdf

and there was at least one more manufacturer but my memory is very good but also very short...

For the Jesel stuff, you won't get much change out of $2600, you can download a pricelist off the Jesel website.

I could be mistaken, but there is a brand of lifters that Darren Tedder (DT Hemi) sells that may make Keyway lifters, I believe the Summit Pro Stock team uses them. I could be on crack and completely wrong though!
I saw a set of Comp Cams Keyway lifters a couple of years back, although no one seems to know much about them.

We run lsm s 937 keyed lifters and they r very nice pieces. Had to replace one and The guys at lsm we're very quick to send one out and sent a bushing with it just incase it had to be changed.

Reason this engine has the keyed lifters in was so the cable train geometry could be fixed with the b1ts heads and the cam is up past a inch lift with a 60mm profile.

I would look at lsm.

have a new ??? for you guys about the key way lifters he has to run the 937 lifter is there a diff. in the 2 jesal have listed besides the roller ??? i see in a few post offset is mentioned but do 937 have a offset of just roller size diff? and if only roller size why the diff. size weight or something to do with the cam??? sorry for all the ???? mike

there are one straight up and at least 2 different offset lifters and also one type that has a longer body ...

I found some info here

http://jesel.com/index.php?categoryid=26

https://board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=5767315&Main=5727955