Full punch into a wall, ouch! As others have commented, I always try to bind my spektrum stuff in neutral. Full brake is tempting, but then if you have a split-second radio hit during a race it upsets the car terribly; neutral has been the safest bet for me.
From the pictures, I'd say you could fairly cheaply go 'half-squared'. If you bought a 1005/1006 Squared Chassis, 1223 Battery strap, and 6142 hinge pin bushings you'd have everything to put the old rear end onto a new chassis (along with some miscellaneous hardware like the 1" battery hold-down screws).
Then, at your leisure or when you break a rear arm, you can put the 3012 squared control arms and 3313 squared CF tower on and have a full-version Squared.
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