1984 tymco 600 street sweeper

unit was in use up untill the end of last years sweeping, the sweeper runs and works as it should but needs the liners on the inside of the body and rear door seal replaced (they were removed for replacement and are laying in the sweeper body). The blower fan works but is chewed up some on the edges (see pics.) . Metal work has been done on the sweeper body (old metal cut out and new metal welded in the blower housing,also some plating, see pics.). This sweeper has a ford (700?) chassis and a GM 8.2 v-8 diesel non turbo engine with an allison 3 speed auto trans,....govt. spec.... 52,677 miles on unit. the auxillary engine for the sweeper is a john deere with 7080 hrs.The whole unit has been regularly maintained by the township. Tires are in good shape all the way around, caps on the back.