Install a Tremec T56 Magnum in your A-body

I don't see how a mechanical clutch is less trouble. The stock z-bars have to be modified for use with the good headers (TTI and Dougs), and even the modified Z-bars barely fit. Any time you have to work in that area it's just another thing that's in the way. And the Z-bars themselves have been known to crack, not to mention the mounting locations on the inner fender/frame. And of course in this particular instance you have to go out of your way to adapt/fabricate a bellhousing that will use a mechanical clutch, because all the off the shelf mopar to T56 bells are for hydraulic clutches. A whole lot of work and no benefit that I see.

Hydraulic clutches are pretty darn simple. Seems like the issues that most folks have with them involve not bench bleeding the system before installation, or improperly setting the clearance on the throwout. And the latter is an issue with a mechanical clutch anyway, it's just the process that's different. With a T56 you can even use an OE Viper slave set up, which is a bunch less expensive than the aftermarket stuff out there and is easily adjusted with available shim packs.

Honestly, I think the only reason people don't like hydraulic clutches is because they don't know how to install and set one up properly.