Check out my thread here,its not as complicated as you might think if you have basic shop tools
http://www.pbnation.com/showthread.php?t=3868733
I dont take commisioned projects for lack of time bit Ive made several,this is my 4th working model,i planned to make one for a TM7 for a teammate but he sold it

Do you have a plastic fab shop in your area?they can make you a custom box,mine in this thread was a premade recipe box i got from our plastic fab company TAP plastics here in CA,it hold about 1 1/2 pods+,I try not to overfill as it causes jamming
PM me with any/all questions,ive worked out the bugs ie;jamming,ball stacking thru trial and error,always willing to give advice
recommened using a Draxxus Pulse hopper or Halo B,both can use an RF interface w/ the soleniod,it helps for reliable feeding
If you can find a Qloader adapter or Ripclip adapter that would help for feeding
I have a ton of hose and a few hoppers(Pulse) I might be willing to let go of
Good luck with your build