Not a problem... If you look at Tower Transit, they did overhaul
many of the ex-SMRT Enviros they received, besides repainting some
of them. They also cleaned up the interiors, as well as fitting new
"BUS STOPPING' bells and even their own onboard announcements.
You're right,TT mostly overhauled and troubleshoot all those A22
and E500 which were transferred in bad condition as well as those
ex-SBST Citaro.
GA also spend a fortune overhaul gearboxes,Change radiator to
all those B9TL and Citaro.I am very popular with the technical
side,Twice every week can see me send many problematic buses for
repair.Normally my report is weak 2nd gear,Bald tires,Creaky
suspensions,Low air pressure and a lot more.