I am going to be building some shelves under our stairs and will need to do sanding once it is installed and trimmed out. So I was thinking about getting a festool sander for the superior dust collection. I was looking at the ets125 and the ct26 combo. Then I thought about maybe just getting the rotex125 since I also need to refinish some cabinet doors and drawers in the kitchen and thought the aggressive mode will help doing that. The problem is can't really afford the rotex and the ct26 right now. I do have a shop vac (cheap and small ) that I could use with rotex. I have bags for the shop vac but it is one that has an open port on the opposite side of the hose and I always think it is just spraying dust out the other side. Any thoughts?