Really nice thinking in all this new or used gear! Keep it simple and it will be cheaper or make it more usable as the rotating cab! Better to rotate the whole cab than rotate the seat and must have double set of everything

The truck cab on a tractor frame is nothing new. They are rare but in the 1980s New Zealand company D.S Hoyle now known as Transpread started building the “Tructor” to suit the steep terrain in New Zealand for lime and fertiliser spreading applications. From memory the early ones were based on the Ford County tractor. After they were brought out by Ray Vincent the Tructor disappeared. They often had GM engines and Allison auto transmissions. Bloody good bit of gear in their day.

For whosoever shall call upon the name of the Lord shall be saved. (Romans 10:13) I tell you, Nay: but, except ye repent, ye shall all likewise perish. (Luke 13:5) The LORD is righteous in all his ways, and holy in all his works. The LORD is nigh unto all them that call upon him, to all that call upon him in truth. He will fulfil the desire of them that fear him: he also will hear their cry, and will save them. The LORD preserveth all them that love him: but all the wicked will he destroy. (Psalms 145:17-20)