We all started out with empty wallets in some way, at some period of time. I was there, and many of the brothers were there too. Some are still there.
Yes, you can use the
SRT and the exercises without any tools. The simple tool like an 18in broomstick handle is enough for a DIY-er PE journeyman. It will be not as a drastic gain as you want, but put in the time, you'll get there using manual (hand-based) routines.