Now while the oil pump lives in its own protective oil filled cavity, there is no doubt that the Mazak "grows" over time, and on some pumps more than others. This is why, unused, they seize. Some pumps I have seen are cracked and bloated, others as good as the day they were made. So, yes, you can be lucky, but in the light of experience as a a first step a drain of the sump, timing cover and oil pump off, and a pressure fed dose of fresh oil down the oilway to the timing bush would be my first move on an unknown or long time sleeper engine. Just jumping on the kicker has a good chance of doing damage to the pump and drive gear.
As to the pump, a hot air gun usually expands a seized one enough to be dismantled, there is plenty on the Forum on ways of fettling what you have and the expensive alternative(s).
Back to Pete's Possible Purchase. A late model with all the R&D sorted, plentiful spares from any number of sources! By no means a distress must have purchase, and if he makes a reasonable offer, will the seller walk away and be faced with more hassle getting rid? By my reckoning Pete's in the driving seat, but only he can put a price on the value.
Watch this space folks, meanwhile gimme the address.
Swarfy.
Additional Reckon Richard is starting to show the signs of a split personality.........