Trans tunnel looks to be the same as non tip 202/208,I have cut out the spot welded part that holds the tip shifter, you can see from under this part is just like the the cutout for the larger diff fitted to the standard 202 boot floor used in 208 55/202 55.
Rear subframe(208 part #), I'm yet to know if this will bolt directly into the C43 as the part is specific to the 208 55 only however earlier 208's use the 202 frame so first assumptions point towards a fitment, I was hoping not to have to unbolt all of the suspension and diff however the lower ball joint boots have split and like every mercedes in creation the diff leaks from the rear cover so will sort these issues prior to install.