My brother owns a farm, I skated the issue and went with farm plates!
A bit on the shady side, but I thought it was the best alternative. I was scared of the restrictions of the historical plate. Now if I'm stacked 13 ft. high with bales of hay, or hauling 5 tons of rock down the road I'm just as carefree as when I'm hauling a truck load of veterans in a parade!
If he does move, as he's planning, I'll probably pony up for the regular plates simply so I don't worry about it.
Not trying to volunteer anyone, but Ida34 is wealth of knowledge in this area. A few PMs back and forth with him is what I did when I was at the plating stage! (Sorry to drag you in Ida, but you really did help me out!)