I started with the harbor freight Kit and turned in into exactly what I needed.
I started with harbor freight #42708 - 870 Lb. Capacity Utility Trailer, 40" x 49". It was $219.99 and with a coupon I got it shipped to my door for around $160. In addition to the trailer kit here is what I used for this project –
10’ 11ga 2” square tube
14’ 1/8” 2” angle iron
2 6’ pieces of 1.25”od round tube
4x8 sheet of 1/2” treated plywood
2 12’ 5/4” deck boards
2 8’ 5/4” beck boards
4 10’ 2x4s for bunks
7 eye bolts for tie downs
6’ wire for harness extension
Front braces are 3/4” steel bar that was already bent that I got from a scrap pile
For those who don’t know the above picture is what the manufacture intended it to look like.
Step 2: Start the build
First I started by assembling the kit to have a starting point, make sure you square the basic frame and check several times while you tighten since the entire build is based off this. After you are happy with this point throw away the instructions because now the fun begins!
I wanted to add a brace to connect the tongue directly to the spring hangers so I added this. It is a piece of the 2” angel iron lined up with the front spring holes. I turned the frame around so the axle centerline would be farther forward since I will be extending the front. This will make weight distribution better and be easier to pull and track better.