Wow!! You really got nailed with the price of that Unistrut. If you have a Lowe's home improvement center close by, they carry a product in their electrical department called "Superstrut". It comes in the normal Unistrut P1000 series sizes (1-3/4" deep) and it also comes in a size I haven't seen before....it's only 3/4" deep. I picked up 2 6ft. lengths for 12 bucks each. Also, using 3/4" MDF you can make the 3/4" Superstrut flush with the building surface. While there picked up large and small plastic builders triangles to fabricate into jig stations.