In my experience. 100 feet should get you to the front spigot, but what if the gpm there is bad for some reason and you have to go to the back spigot? Old pipe build up, etc.
In the Navy, I learned two important things:
2 is one and one is none. It's always better to have it and not need it.
There two ways to do anything. Right the first time and again.
That being said, spend another $60 and buy another 100 feet of hose. We keep 200 on the reel and 75 just incase. Beyond that we're probably going to rent the biggest tank we can find to tackle a job without filling it more than once.
Also, if you're running 130 feet of pressure hose I'm guessing you have a cheap junker 30' hose attached to at least a decent 100' hose. We keep 150' feet of pressure hose on the reel and a 50' foot hose as a back up and the only reason that is is because I haven't sprung for a 200' pressure hose.