BTW, I was puzzled about the SMD (Six Moon Designs) comment; looks like indeed nothing is for sale now, but all the product pages say that, due to a production delay, you have to wait until end of May. Assuming that holds true, you might want to look back if you're not in a rush.

Since you already know about SMD and TT, have you looked at Mountain Laurel Designs? ZPacks? Hyperlite Mountain Gear? Lightheart Gear?

My personal favorite solo tent is made by Lightheart Gear. NOT saying that makes it optimal for you (or even that it's necessarily the best option for me today ... I don't know!), but maybe something to look at.

Good luck!