More power to him, carpel tunnel is in his future...
I got a small pneumatic for about $25... you just need to be able to shoot 1/4-1/2'' t50's
If you need a cheap fix ive heard of people with vettes using 3m Urethane to hold their windows back in place. then using 2 big suction cups strung up to garage rafters to hold the window in place while the urethane sets.