They look like pretty standard dash warning lights.
Try these, only $4 each
FinishLineAccessories specializes in Cobra stuff. But they are a good resource for little bits and pieces that we can use on our TDs.
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)