Hello everyone, I have been in contact with someone about purchasing a used Red Sea Reefer 250. The tank is close to 5 years old. I will drop some pictures below of what the tank looks like. It comes with tank, sump, cabinet, skimmer, and two pumps. Want everyone's opinion on this, and if it is a good deal or not. He is asking $500 for everything included, but he said if I bought it today he would do $450. The one caveat is that I would have to buffer out all the minor scratches off of the glass. I have no experience doing this. What do you guys think?