Greg;
I wasn't planning to take the front PTO off, so pics might be a problem, but if yu need them I can.
I used a chev FWD hub. cut it down, and drilled it to bolt onto the crank pulley. then I took the matching axle shaft, cut the CV joint hub off it, turned it up in the lathe and drilled it to the sixe of the A/C shaft. Put the A /C shaft into the splined axle and welded them together. Since A/C compressors have the bearings near the middle, I turned the frot housing to take a bearing that fit the shaft. Then bolted the front housing to a plate and mounted it on the tractor frane cross bracket.
the battery has to be raised to accomodate this arrangement, as it would if you purchased a factory front PTO kit . All the rest is up to what you want to drive. No reason it should ever interfere with your FEL.
You've done a nice job of your clutch, but IMHO, the tensioner is too complex.
When I build, I always adhere to the KISS method.
My front PTO can stay on the tractor forever without ever interfering with anything I want to add.
Let me know if you want more info. My Front PTO is a ringer for the Yanmar Kit.
The fun is in making it happen.
All the best.
Richard.