Personally i think you are asking for trouble that is far greater than the $35 for a 5amp Hyperion charger... One puffed/damaged lipo will cost you a lot more than $35...
I think we've all looked at the video's of lipo fires on youtube... So now imagine that in your house!
Only charge at work on a 1/2 thick 4by8 metal table. Never charged anything at home. If I can get him to come off some money then I'll order him a charger but he is tighter then a new boot. I might just charge mine then whatever time I have left charge my other bat for him to use and just call it good enough.