You asked! I love the USA, but I've never liked the "Handmade in the USA" graphic. If it were me, I'd also leave that space blank. If you want to include it, perhaps put it on the chain stay where the "Shimano" used to be in a much smaller and matching font.

Someone had previously suggested that you upgrade your membership so you can sell the frame on BF, you have very good skills, I think you could make some extra pocket money painting frames for profit.