How long before that RC Monster Polyquest battery tray is back in stock?
I ordered a conversion kit from RC Product designs almost 2 months ago and I'm about ready to just buy your Mugen motor mount and a battery tray and be done with it.
The battery trays are actually slightly over sized for the Polyquest and Flight power packs I have here - There are plenty of pictures around these forums of these trays in use as well. The manufacturers posted dimensions are usually a bit less than perfectly precise as well - the packs fit just fine(any pack I have listed here from PolyQuest or Flight Power easily fits). If you find that the pack doesn't fit to your liking, simply return it (BEFORE you install it of course). :)