Re: Extra hands when you need them
The key to working alone in the shop is to have all of your tool tops and work surfaces at the same height, this allows you to handle larger and longer materials out without needing a helper. Tripod roller bases set behind and next to your table saw will carry the material as you slide it through the saw.
With clamps, a straight edge, and a good blade in a decent circular saw will allow you to accurately cut large sheets into a more manageable size.
For heavier, bulky items like the cabinets you've mentioned, I like your idea of a hoist system to lift them to a trolley or the back of a vehicle.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!