Hmmm. I don't know about that. There are two ways you can install leveling feet. First way (preferred but not possibly feasible for you) is to use these aluminum base plates. See attached image. The second option is to thread the center hole in the profile and screw in the leg stem. Again, I am just adding my opinions here. You already invested a fair sum of money into this. Finishing it the right way may take some time but not much more $$$. You will be much happier with leveling legs than some "sub optimal" solution. I don't know where you purchased your profile. McMasterCarr. Grainger. Two generic options. I would suggest you contact framing tech. Good guys over there. They can help you get this over the line.