Rear bags only - mounting solutions

[Figuarus]

hey guys. I've been trying to figure out the best way of mounting some airbags to my truck, but i'm not really finding what I need. I might be overthinking it, so I figure i'd run it by you guys.

My brother gave me a set of bags for the rear of my truck. For now, all I want to be able to do is adjust rear height.

This is the bag in question. I think these may be from a Topkick or something.







As you can see, i'm dealing with a 6" diameter plate, and about a 9" bag.

I called Pro Performance out of AZ regarding this kit:

http://www.azproperformance.com/60-7...ts-231156.html

Apparently my bags are too big for their brackets.

I was thinking about using aluminum billet and machining the holes I need to mount everything, but it's pretty expensive.

Does anyone have an idea of who makes a bracket kit that may fit this? Any other ideas I might have overlooked? I'm thinking about using wood at this point...(not really...just making a point )