Big Agnes publishes (and explains) a bunch of different weights for its tents, like trail weight, packed weight and fast fly weight.

Here's the SL Seedhouse 1 for example:

Trail wt 2lb 6oz
Packed wt 2lb 13oz
Fast fly wt 1lb 12oz

I looked at the MSR and Mountain Hardwear, too. I think freestanding would be nice, though.

Nanci