I will sell you a custom air rigs very similiar to mine that I have below. All I need from you is to know how tall your CPU cooler is (bottom of mobo to about 1/2 inch above CPU cooler) and I'll make it to that height. (as you can see in mine, my ram is actually taller than my cpu cooler.) I'm going to lay down the psu's flat this time around. I just used a few pieces of velcro to hold the PSU down. The motherboard has only 2 nylon bolt/nuts to keep it from moving, and I've never had an issue with it.
Tomorrow I'll have pictures of the new rig.
Here's pictures of revision 1:
Also note I was ripping the 1x1's out of 1x6 and ran out, hence why the fan is lying on two random strips. I'll be putting cross members up there AND cross braces vertically between the cards to keep them upright. ( I didn't have cable extension dimensions at the time.)
Anywho! I'll get revision 2 made and throw up pictures. These will be stackable!
I'll sell a 6 card chassis for $30.
Shipping is two options:
1) Number coded put together for about $15-20 shipped each ( All you need is a philips and a few minutes)
2) Ship entire thing assembled, which might be about $25, I'm not sure on UPS dimensions vs weight costs.
If you like these, I might start selling more. I know I have the cheapest product here.