Thats pretty much how I did mine. I recently picked up a Ruff Stuff cover, I had to cut a bit off the bottom of the cover. I kept the OEM bottom bolt. I did install a lubelocker gasket and had to cut more of that than I would have liked to... link to post... I didn't have any leaks with the OEM cover and a felt/paper gasket with grease on it, I think my lubelocker leaks a little but I cut quite a bit off it.
3rd picture in this post
https://www.rme4x4.com/showthread.p...-XJ-Build-up&p=1067162&viewfull=1#post1067162
Before I made my little bracket I would have told you to find a newer axle with drum in hat style parking brake, but now mine works great and has worked great since I made my brackets. You will likely have to do custom cables, my homemade ones actually worked really well and only failed once, I don't think it would have failed if I had the diy cable brackets since I wouldn't have been pulling my brake handle as hard. The cost of the calipers with the arms and springs is the main issue, but if you go with the other style it looks like the arms can be made.
For my DIY parking brake cables I used longer ones (one from a jeep one from a ford) I used a cutoff disk to cut a slit in the metal pea on the end, I then drilled the cable strands out of the center of the pea and drilled it out so it could be re-used. I then pulled the inner cable into the cable housing and cut the housing. Then I pushed the inner cable back in, and cut it where I thought it would work. I slid the pea on and clamped down on it with a press. I then hit it with a welder (which is probably not required). igrnor my finger in this picture but this is a home made end. It is not at all water tight. If you look close enough at the pea you see the slit up top.
I hope that makes sense. I would recommend doing this to get the size right then you can take them to Six States and have them make new ones off your DIY ones.
Nathan