Both parts you recommended, I suppose. The "maybe a 32 pin TQFP" is
7x7 mm, isn't it?You need to ask Mendert this question, though. I was just remembering his comment.
In 100's. I think your proposition is fine, except you didn't point out clearly where it deviated and where I'm sure you already knew it. With the caveat of size and qty included, I wouldn't have said anything at all.
I've read Meindert's posts and I know he knows a lot about what he's doing. So I tend to take his boundary criteria with a fair degree of seriousness, as a starting point anyway.
Jon