My van, 87 1.6TD Westfalia club joker is going in for welding and paint next week !!!

My current Late rear tailgate is knackered and I need a replacement.
(My late tailgate 1987 hasn't got a wash wipe hole as its a Club Joker so originally had plastic double glazed windows i.e No wiper)
My body shop has sourced a mint tailgate but its an early one (1985, I think)
HELP/Advice needed PLEASE!!!!........
Any issues with this swap?
I saw the push button is smaller on the early tailgate can I use the late push button mechanism or swap the barrels (so one key)
No Centre VW badge recess on the early tailgate, can I still mount a central badge?
Is everything else the same or not?
Thanks very much in advance
