I have an older Harman PC45 and last year at the end of the season the air pump took a crap.I am not really interested in converting thos to a P61,my question is,Can rebuild this air pump and still get parts to do it?Second question is,If I can not then where is the cheapest place to get this?I will require the new mounting bracket also,which I will cut on a laser and bend myself as I will not pay the price for a small piece of bent steel.