Update:
Took the trailer to an axle place yesterday and they straightened the axle. They said it was pretty bad but they also said that the process went well and that there was no other damage to U-bolts or anything else. Only cost $170 incl taxes (here at 13%).
Now to get a new tire. Unfortunately the spare is on a plain steel wheel, so I cannot change it out without making two changes. I think I will just get a new tire and put it on the aluminum wheel.
While hooking up I noticed that the large bolts on the Equal-i-zer are loose so will fix that today as well it it stops raining.