That's pretty much what I figured.. but had to ask
Is there a preferred spoke count for city riding? My LBS said they would never put out a 28h wheel because it wouldn't hold up in the city and recommended at least 32h.
36h rims are stronger than 32h rims.
I would have no problem putting those "Pure Aero" wheels on my junk beater frame.
I would not put those wheels on my $700 frame.
"Pure" is a brand no one has ever heard of. The rims are probably made by the same factory workers that make some fancy rims, but we'll never know. You're taking a bit of a gamble on build quality, which doesn't seem necessary given your budget.
I might be tempted to contact someone like this guy:
http://www.psimet.com/
Regarding a fully tailored hand built wheelset. I don't know how his pricing works first hand, but I imagine he could work with you in your price range.