235G should be very doable, the limit might be 225G.

I have spent about 24 straight hours working on the puzzle trying to get 235 or lower, but every layout I tried failed in some way or other. With 2 hours to go before the deadline I started over at 245G, and got my New Solution 1 at T-30 minutes.

I think trackless 1 grab is possible, but not cheaply; it would play like MechA.