I do my building on a solid Oak door with a Great Planes balsa building top (I have the three sizes so can do multiple building at the same time). This provides a smooth and flat surface that takes pins. Ceiling tile is fine for awhile..I just didn't care for the "breaking up and replacement" routine, which is only personal. You have a nice start with the desk, however, I've found that many times I want to walk around the building table to work on something from a different angle. I purchased a couple of those 30" by 72" brown top/metal framed folding tables that I lay my solid door/balsa building board upon and I adjust the height of the building surface via oak dowels in the hollow table legs. Lots of good ideas here...try a couple and find the combination that works for you. Have fun building!!

Soft landings.

Joe