Hello INF, It appears that the Fenders and the Radiator Guard are different between the years. You may be able to replace those two items with the Hood and the minor attachment items. The fenders may only be different due to the profile and not really an attachment issue.
But, a better and cheaper idea is to purchase a takeoff body. I saw two for sale the last couple days and it may be in the sales section of this site.
Personally I think changing the radiator guard, hood, and the grill with the attaching hardware would be enough. Your fenders would not slope down in the front is all.