i dont think it would be too hard to determine which buds have the seeds ;-)
theres a whole thread about making seeds stickied in this section idk how you missed it
https://www.rollitup.org/breeders-paradise/20319-seed-production-tutorial.html
36"x20"x60" tent = $90
250w hps/mh light+ballast = $120
6" inline w/ carbon filter = $150
[shipping included]
if $140 isn't enough to cover the rest of the grow then id go with your setup or be willing to spend the $$ for a quality setup that will last
http://www.amazon.com/5L-AIR-POT-1-5-Gal/dp/B0041SV2C2
http://www.amazon.com/7-5L-AIR-POT-2-Gal/dp/B0041T0G4Q
but http://cgi.ebay.com/Superoot-Air-Pot...item92af4bcb42 looks like a better deal