Maxamps 11,1V 8000 mAh on RCM CRT.5 extended chassis?

I just ordered CRT.5 and I'm thinking to get RCM extented chassis to it. Will my Maxamps 11,1V 8000 mAh pack fit in? I'm sure that stock chassis plate is too short for those batteries but will the RCM extented chassis help with my problem, or should I get smaller packs for it? If someone knows the dimensios of stock and extended chassis plate, I'll be happy to get them. Thanks.