Today I ventured up to the southern marches of Indianapolis (Greenwood). I found out two things: 1) Tom Metzler Hobby is no longer at 7418 Madison Ave (don't know if it moved or went out of bidness). B) Hobby Town USA at 7765 US 31 S is not actually on US 31 S, as I found after driving back and forth three times. It's on South Shelby Street, a block east of US 31 S. However, the address on the door does say US 31 S. Be advised.
But I did get the paints I needed, plus a replacement Teflon washer for my Badger 200 airbrush. Should keep me going until the Roscoe Turner model show and swap meet next month.