I got some from eBay (generic Raleigh decals from the same period) but I couldn't find any 853 decals, or the M-Trax seatpost decal.. Good luck with the search tho - would be interested if there's any other options than having them made bespoke.
Can vouch for that too! Had some made for a Voodoo and they are spot-on..
Just didn't go down that route for my Raleigh due to finding some NOS decals available (albeit a different model).