Looking great Curtis5000! I had that same moment of inspiration but I first need to finish and enjoy my Tele.
Blotchy as in uneven in colouring? If yes, during the staining process use a damp rag to work them out. If you have been using a water based stain you can still try to do it now it's dry, but it is harder. I am not sure if you use a meth spirit based stain.It is a bit blotchy after the sand though, anyone have tips on how to work these out? Sand the dark areas or will that create an uneven surface?
With sanding I would never sand in one place unless it is a very light touch-up sand with 320 + grit.
Good luck! she's looking great!