CHFBoth should help with a blow out
Safe t plus about $500.00
Blue Ox about $1,000.00
Blue Ox is adjustable as you drive so you can adjust for wind road crown or whatever with a push of a button.
Safe t plus is like a shock absorber you set it and that's it. No adjustment unless you crawl under you rig loosen a couple of bolts and move the bracket a little.
I would get it weighed first then set the tires to the correct pressure based on the weights. Four corner weighing is best. Then get it aligned and front end checked and go from there.
Weighing motorhome 
