FLM Ext. E-Maxx Chassis Questions

Sup guys, just have a few somewhat mildly retarded questions on the FLM extended E-Maxx chassis kit. First, does the kit require extended E-Maxx bodies or is a standard Atomik body sufficient, just with the body post holes drilled back 3.5 cm further? Are there any other parts outside of whats included in the kit I would need? In terms of an antenna mount is it possible to keep the antenna in the same location as on a stock E-Maxx? (so as to avoid drilling another hole through my body.) In terms of battery straps or mounts...do I need to purchase some G-Maxx straps or what? And finally does the installation run rather smoothly or does the chassis have Integy-itis, where holes are too small or stock screws don't fit? Thanks for any help you guys can throw my way....I just don't feel like forkin over 200 bucks to HCR for their stock aluminum chassis. Everything is Everything.