Completed with ac 1 on a 1992 Goodman 3 ton r22 gas horizontal in attic , upon arrival customer stated that temperature has gone up to 87 and it won't go below 80, found unit very low on r22, no supply or return plenums and very short on return. Giving customer the option to do all preventative repairs, minimum repairs or complete unit upgrade. Customer cannot make a decision at this time since he needs to talk to son.