Built this little guy ourselves.

Nice looking trailer.

Did you spray coat in a 2-part epoxy product like RhinoLiner or LineX? I only ask because the photo makes the paint finish look rough, it might just be the photo? But to me it looks like one of those types of products. If so that should protect it from all sorts stones and other debris.
 
Yes it's RhinoLiner. Good eye! We had to do that so that the trailer would last longer in our snowy area that gets overloaded with road salt :/.
 
Yes it's RhinoLiner. Good eye! We had to do that so that the trailer would last longer in our snowy area that gets overloaded with road salt :/.

I sprayed the underside and the inside lower 1/2 of my Snow Trac with a RhinoLiner type product. Protected the sprayed areas very well. I think you will be happy with the protection you get on your trailer. I was in a parking lot the other day and saw an entire Jeep that was sprayed ... and it looked great!
 
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