Your on the right track with both as Dennis said. I’ve also owned both. Parts can be had pretty easy for each and all models. For the TM you need to choose from the oldest, K9, K9b, K9C, Kz10, KZ10b. Maxter MXO and MXV. For Maxter one year they had a vertical read cage which wasn’t to popular. I suppose a Vortex would be on the list also.