I guess if you brace from the front and rear bulkheads to the Center diff mount it would be ok. but without this brace I would think that the chassi will bend right at the CD, where most of the weight is located. I say this cuse even in the stock nitro form they use chassi stiffening braces right neer the center of the chassi.
The E-maxx is a totaly different design and uses a chanel type chassi with the skidplate to chassi brace, to help stiffen the over all chassi.
Notice the brace behind the fule tank, and I think there is one under the radio tray too.
http://www.jamminproducts.com/CRimages/cr6lg.jpg