Dont own one now but used to have a 90 G. Bought it with 35K on the clock for £3500 (from ford garage). It lived outside on the drive and was used every day and night. Standard engine with the usual stainless exh, K&N, collins actuator. just kept it clean and washed the salt from under the wheel arches in the winter. Fresh oil & filter every 3K. Never gave a problem and i sold it with 148K on the clock. But you allways get good and bad ones its just luck which one you end up with.

happy hunting and good luck.