> The thing is - unlike most folks, I really am strong, I can run up and down the stairs a lot, even renting a truck 2 times is less than paying professionals.

Let's say you are deadlifting or doing a farmer's walk. I guarantee you that you aren't putting the weights down so gently they don't even clink. Much less holding them at a microscopic height above the floor so you can make fine adjustments from a rounded-lumbar position of extreme mechanical disadvantage so that you don't scuff your floor. If you do this, yes, you will be fine. I don't think your possessions will be. Penny wise and pound foolish.