Hey up..
So the windscreen rule I'm pretty sure is stricter in SORRCA - the scale stuff, if I remember correctly it definitely applies to C1 and possibly C2 but would need to look it up. As for our comp 2.2 rigs I believe the "must resemble a real vehicle body" rule would mean a windscreen shape certainly is required..
Bully2 is a great rig. I run a bully2 chassis on some XR10 axles. As for rear steer, I've certainly seen plenty do the conversion on the bully, but it's not for me, makes it too capable and I like the limitations of the rules. Motor mixing, dig and burn are plenty fun π€
(Oh, and best get a piece up in the pic thread - be great to see the rig π)