I need to drill my aquarium stand to line up with the holds in my tank so I can run my drain and return lines to and from my sump. What is the best tool for this job? I've got a few hole saws in my garage that would probably do the trick. I think the holes in my tank are 1 1/2" but the smallest hole saw I have is 2". Is it an issue if my cuts in the stand are a little larger than needed to run the plumbing through the stand? Any tips? This is my first time drilling a stand.