John,
There is not direct source for a TD replica large diameter fuel hose.
Measure the pipe (which is likely two inches but I’m not 100% certain). Then just search xx inch fuel hose. I found many sources for fuel resistant 2″ hose.
Paul Mossberg
Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
2005 Intermeccanica Roadster
If you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)