I forgot that the tire wasn’t in the first order amount I added it later and one set of united bearing holders so the total was $95 for the spokes, rim, tire and the bearing caps so $30 for the rim sounds right.
If you allready have a 20" Torker DX I would say about $90 and you could turn it into a trials uni.
I have built eight unis out of cro/mo bike forks, two trials, five munis and one coker,and none of them have broken so far. The first frame I built I ended up selling to a friend when I did an upgrade and it got ran over by a fork lift on a construction site. It bent it up but it didn’t break the frame.