I have a 100 gallon rubbermaid vat. It has a bulkhead near the bottom, then one higher up. can be plugged. I used the lower one for a return pump and the higher one to drain water for waterchanges. looking to get $50 out of it I believe I even have a couple pieces of egg crate that fit in the curved parts of the tub.
also have a really old kinda rusted (yet working) 250w mh ballast- $25
I may have a parabolic reflector and socket also... i'll have to check storage. $10 if I have it.
also have a 30 breeder? i think the dimensions are 30x18x12... It is drilled in the back, holds water, has a bulkhead included but it is very ugly(wood trim, glass is foggy from calcium deposits in areas) $15
only thing I dont have is the skimmer. well I do have one but im wanting to save it for a build coming up.