You can store them at my house. I promise I'll take REALLY good care of them! [8D]

Seriously, the best product I've ever used for preserving a firearm, short of Cosmoline, is BreakFree CLP. CLP stands for Cleaner/Lubricant/Preservative, and it lives up the all three very well. It was designed for the military and is the exclusive non-arctic cleaner for the M16 series rifles which are subjected to some of the most hellish environments on Earth. If you are going to use the weapon regularly, a very light coat is all thats required. If you plan on storing the weapons for awhile, a heavier coat applied before the gun is put into storage will preserve it indefinately.

Mike