any one of these three should last you the rest of your life if cared for , I bought a Makita many years ago , it has all ways been ready to go when I pulled it from it's case , that said Milwaukee , Makita or DeWalt woud be a top choice for me . my choice would be based on weight and functionality, how well you can see the cutting edge of the blade , the process of changing the bade , the comfort of the handle in your hand ,motor lock for changing the blade ,etc, I had the chance to use a newer DeWalt not long ago and found it very comfortable and easy to use , where the owner said it was not comfortable for him and felt awkward .next woud be do you wan a worm drive? I have never owned a cordless circular saw but it may also be worth looking into .Most all of these can be purchased for far less then 150.00 .on ebay all that said if the brand name doesn't matter and you don;t plan on using it every day ,don't pass the opportunity to look at masterforce they are well built for what they are . as far as parts for the old saw I bought obsolete parts for the Skill shop from a place online called searsparts.com , you need the model no. of the saw and then you have to search for the part . Just google obsolete skill saw parts .
Hobbyman2 Favorite Quote: "If a man does his best, what else is there?"
- General George S. Patton (1885-1945)