I mount my macro platform on a Velbon tripod that has a geared centre column. That gives me fore and aft , side to side , and vertical adjustment. ... Or are you planning on raising and lowering your subject NOT the camera ?
Dave,
Yes, I want to control raising and lowering of the subject out in front of the camera. And you nailed it with that lifting platform. That thing is perfect except for not raising above 5.5 inches tall. I'll look around for another size of that type of equipment that'll get to around 10 inches in height (for whatever flexibility I might need down the road).
As for mounting the camera, I took the table-top approach for that. Remember the days of slide projectors? I was given a piece of equipment that was used for photographing the film slides for creating the slide presentations. The equipment is designed to position the film slide very precisely and I figured it could be adapted into a "macro table"/camera base. I removed the film slide holder from the center of the table and installed a strap that I attach a tripod head to (my Manfrotto 3-way head so I can also control landscape or portrait orientation). The first image below is the table alone. You'll see an adjusting screw on the rear and right side used to adjust the X and Y axis. Those adjusting screws can move the table in 1/50th a millimeter increments. Also notice the round bit in the table - it can also measure exact increments of 360 degree rotation if needed. The second photo below shows the rig in action with ne off-camera flash.

