Well we have the plumbing and a half way workable sump.
The issue is that everyone loves to hype up skimmers, and there is this idea that you need to use a lot of different filtration solutions together. For the $330 I spent on the skimmer, I could have easily gotten a black box grow light, powerheads, more macro, and a skimmer pump to aerate the water, not to mention the space that would become available for use as a fuge.
Let alone trying to figure out with ever ones opinions about which is the best skimmer, what works, why it does not, where to buy from, how much flow, how deep. One thing I did learn about skimmers which I had not thought about was the pump, and the power it consumes.
An example is the Bubble Magus Curve 7 I think, the old pump compared to the new pump. Over a year you can almost save $40 in electricity on the pump choice alone.