Deepwoods, when you get to the point of mounting your TD to the Ultra-tow, would you mind sharing some measurements of the distance between the trailer support rails and the position you place the TD? I’m thinking of using the same trailer and would like to figure out how much support is exposed in front of the TD. I ordered my TD earlier this week but chose not to get the storage box because I plan on making my own to fit this trailer or something similar.
You won’t need a dust collector just for an orbital sander. Any shop vac should be fine. I recommend using a dust separator with your shop vac. It can help capture a lot of the dust before it gets into the vacuum and the filter so you don’t have to clean the filter as often and it will help keep the suction strong. I use an Oneida Dust Deputy (https://www.oneida-air.com/dust-deputy) but am about to make a Thien Baffle dust separator (DIY solution with many plans on the net).