Alright, time to reboot this project!
Here is the list,
VM / 212 1956 Pace
VB / 2318 1957 Rover Major
R6 / 698 Stationary engine
(Lower only) V8312 1956-57 Pace
VM / 668 Buz-a-cut
(lower only) V8584 Minter
(lower only) V3922 Buzacott stationary
(lower only) V3963 Buzacott stationary
So VM is most likely 1956 (still got to confirm with more numbers) Which would made the Buz-a-cut 1956, which is what I expected. The rest is a little strange, but we will work it out.
Thanks everyone!