I just hooked up the electric capitano after sitting for 2 years or so. Ran it up to 3700# and shut it down. (No air leaks) Over a week of use the max pressure has dropped to 2000 psi. What am i looking at as far as a repair job. A valve maintenance kit is around 250.00 and a 3rd stage piston and rings for all 3 stages around 350.00. I this a job that one can easily do themselves wth the right tools? BTW what may there be in the way of special tools. When i bought it it was easily pumping 4500#. Any insights appreciated. I have some manuals for it that bauer sent me.