Axle upgrade questions

Well... $2500 later and I am all set. Ouch!! As noted earlier, I took it to a frame, trailer, axle alignment shop. Turned out the axles were quite a bit out of alignment and required bending. Springs were shot because of the original bushings and that also means the copper bushings I installed 3 months ago were already damaged. So all new springs and bushings. I then chose to force balance the tires. Lot's of labor time involved and it got expensive. Was a tough call as I could have just kept dragging it around and replacing tires every 2-3 years but I decided to get it done right. Tracks and tows perfectly now so hopefully all of this is worth it. Shop said most trailers are out of alignment. They said you can put on brand new axles and they are likely our of alignment. Anyway, expensive but now I'm ready for our next 1000 mile trip