I'm going to take a punt and say you have now spent more on parts than you did for the kit???

If I'm right, congratulations! Everyone needs to have at least one over-capitalised guitar in their collection!

Just curious, with that clamping arrangement, how did you confirm the neck alignment?
Did you check the neck angle before gluing? I don't think the Single Cut kits have been too bad, but there have been numerous "PRS" and "ES" kits that have required shimming.