Your best option is to have a look in Holland for a complete roof or complete jeep.
Some years ago i organised the shipping of a j10 cab to Ireland.
Still have the contact info of the transporter.
I maybe know a parts jeep wagoneer!
Could ask for you if you want to see if the roof is in good shape!?
If you go for a roof from the US you better buy a complete vehicle!
It's easier with shipping and most of the times cheaper
Jeep "because mother nature hates flat roads to"
99' Dodge ram 2500 4x4 crew cab 5.9 Cummins ,backup work truck for now
73' Jeep J4000 (named Heep or Desert Dragon) amc 360 V8 converted to LPG with T15/D20 (was my daily work truck for thirteen years and is going to have major overhaul
80' Jeep cj5 350 V8 Chevy/ms420/D300 (a slow ongoing never finished project)
Trucks/car's from the past:
85' Volkswagen caddy mk1 1.6 diesel.
83 Toyota land cruiser BJ42 3.4 diesel.