Here is a link to the parts manual for your boat. The first section of the manual shows part numbers for stripe tape material.
https://s3.amazonaws.com/srweb-pvt-prod-us-east-1-294962523550/static/parts-manuals/1994__1994-330-EXPESS-CRUISER.pdf
You may be able to find “new-old stock” stripe tape from a Sea Ray dealer, but it is a long shot. Try giving them the part numbers for the stripe and see if there is still availability.
On my 1992 Sea Ray, I was able to go to a sign shop that does vinyl letter work and buy material from them for patching in damaged stripe tape on the waterline and deck. Sea Ray stripe tape colors were custom, so matching them perfectly might be a challenge.
Best of luck on your search.