depending on how creative you are with building you could build a sump and refuge and get a skimmer for probally less and get a better skimmer, i bought a all-in-1 at 1 time and i have all seperates now, euro reef skimmer, and refuge , and sump all from a 40 gal tank, of course the skimmer is seperate, but you can get a more affordable skimmer for the money you want to spend.
JMOP