X2 for the Maurer. We went with the shorter of the two for a 9870. The only issue we had was when we opened the box and said we're the fk did they come up with there price!! Just looked like we payed to much for all we got...... Kinda like our crop catcher we got lol!!!
I wouldn't put after market extensions on a JD header if you end up with a few tonnes over the factory setup and weight. Your just asking for busted rear axles, chassis cracks, final drive failure, and front tyre failure. Add a 40ft draper which the minimum in oz and that's more weight. If all you harvest is oats or barley then do it.