I used Turbo Rebuild's uprated CHRAs a couple years ago. Their website has them still listed: https://www.turborebuild.co.uk/websh...rger-Core.html . Did you speak to them on the phone or email? Very helpful.

I would replace the cam chain tensioner pads regardless if they look fine. They're plastic and the car is 18 years old... nice and brittle by now. You'll have a much easier time doing it with the engine out.