First off, you need to set you Scamp
upright, so that gravity can do it's thing!
Seriously, it appears to me that your trailer is riding very low, and is probably in need of a new suspension, which in these trailers does in fact mean a new axle.
I replaced mine, ordered it from Scamp
and had a local shop install it. Well under $1000 total. This included adding electric brakes
and the necessary wiring. This was substantially more expensive than the price Scamp quoted me, but saved me a trip to the factory.
If I were to do it again, I might decide to just take the trailer up to Backus and have the factory do the install. I've had other work done and they are very reasonbly priced and do the work quick. You have the assurance that all is done properly, as well. Plus it's a pleasant trip up to MN.