TBH, I'm not sure of too many places in the EU that make repro boxes and manuals and such. I know of a fair few from the US, but most of the ones I think of only provide NTSC stuff, they won't make PAL boxes or manuals or anything.
I think your best bet would simply be to check eBay and see if they have the box or manual you want and go from there.
Inserts are super easy to get, you should be able to find someone selling big "packs" of them for cheapo on eBay as well. I usually see packs of like $10 for $10 on eBay occasionally.