For my building surface I'm using a damaged hollow core door sitting on a fold up table with a 2x4' ceiling tile on top. Its flat, easy to move around and easy to put up since I live in an apartment.

For your next order, and you will be making more orders when the building bug bites you, order 100 #11 blades and many, many more CA applicator tips. Also I have learned that a product called "Paint-n-Patch" lightweight spackling compound works better than Hobbico HobbyLite Balsa-Colored Filler. You can find that at Home Depot.

Welcome to kit building. [&:]

Edit: The door only cost $23.