Wah!! good work Toa, so close to the 1850 mark (and yet so far
)
I actually submitted 2 sets of 3 solutions, one right at the start, and the other 3 at the end (which were meant to replace my earlier 3), so sorry if there is some double up! They are a good conversation piece over what counts as force though.
It's interesting to see that people's predictions of $2 gaps weren't realised - there's always some metal bar you can replace with rope - or thin air! And speaking of which, I think there is a bar missing at the bottom of your structure, toa!!!