Rigid is an excellent wrench. For casual work around the house, you don't necessarliy need to spend that much money, but I would avoid the no-name Chinese imports, because the steel is very poor quality.
You CANNOT solder a new valve with a single drop of water in it, much less 15% of flow. The city should be responsibe for the valve upstream of the meter. See if you can get them to do it.
Otherwise, this is a situation where a freeze kit could be used while you install a new valve on your side. A ball valve is definitely the preferred choice. Get a full-port bronze valve with stainless steel ball. Avoid the import brass ball valves. They will only save you a few dollars, and the quality of the brass is iffy. Soldering a valve is not the easiest job to learn soldering on. Maybe you should get a plumber to do this.