i try to keep my temp around 78- 79 max .... i have seen it at 81.7 so far. I have began droping lunch freezer packs in my sump as a temp fix as well as cutting back the ammount of time the lights are on..
I think fans alone would get your temps down where you need them.
For the price of a chiller you could do the fans and t-5 lighting. Cooler all the way around and a broader color specrum with the 5's
do you have a certain fan you have in mind... the only fans i use to use before were in the sump and i mainly used them to lower the humidity and prevent mold. never needed fans in the canopy
ya i made it myself.. i was proud of it untill i saw some of the builds on here by a few of the other guys... lol i will post pics later but its 8 1/2 inches tall ...