"Quick" change battery system

I started a post in the electric section but before I knew how to start a poll.

So here it is:

how many would be interested in a quick change system.
A system that would alow no body modifications, no removal of the body to change the battery...
A battery tray that could alow for any hieght of pack with the same length.
this system would work great on a truggy, but I haven't tried on a buggy yet

Please include ideas as to why you voted one way or the other.
Thanks for your thoughts.