I know this machine well,
It spent quite a long time at A.C. Price engineering, when it was there it had all the snow blower gear on it including the om312 (which was also fitted in the very early 406's) whilst there it earnt the nickname of "stanley the snow blower". it then got bought by a friend of ours called Simon. funnily enough Simon is the one who bought the schmidt cab 406 of ebay, small world.
It isnt a particularly high spec 411 really, it does have origional power steering, which is worth a lot, and a compressor, but thats the only really unusual things about it really, most schmidt snow blowers came with power steering.
It now appears that Simon has sold it on ebay, hopefully the new owner will come on here, as it now means i have lost track of this vehicle, unless i contact Simon