Wow I derailed this thread, went all the way to man buns!
I was wondering why the rear subframe wasn’t inline with the front. I see that you boxed it in on both sides which will be plenty strong, probably just more weight than needed. I was thinking it would have been done something like this -|-, instead of this -|_. if that makes sense. The good thing with your design is that the main hoop and kicker bar is better supported.
Wasn’t picking on it, just wondering why it was done that way. Guess I have too many years playing with submarines.:D