hydraulic clutch

I plan to change from a 903 to a a833 in this 68 Barracuda. Likely a year away, currently in the planning and finding parts stages.

anyone using or plan to use a hydraulic slave cylinder in place of the Z bar and linkage to operate the clutch,, just looks to be a much simpler install?
and
is the transmission cross member common between the auto and manual transmission? or do I need to be looking for one of those?

thanks