I would consider the BIAS Buginator over the ENO. It's only $10 more and about half the weight.
The absolute cheapest route is gonna be DIY. You could get some tulle really cheap (I got 40yds for $17) and experiement with different styles. When you find the one you like you can make it out of noseeum or buy the commercial version of that style.
"As a well spent day brings happy sleep, a well spent life brings happy death." -Da Vinci