I have Multiple air pumps right now, but I will be looking to upgrade to a linear piston pump. For your set up you might need a blower. Not sure on that, others will have to chime in.
As for lids I always do glass. I will be trying some plexiglass on a couple 50 breeders since they have a center brace. Fortunately, I have a good dozen or so 10G glass lids laying around from a previous 10G rack i had. Fish room quality but the work.
