[CA] [CA11] Upgrading Electronics - Axiom Transducer questions

[T380fisher]

I am in the process of upgrading my electronics and have already purchased the Axiom 9RV, Quantum2 Radar, HS5 switch and plan to get the AR200 w/210 camera combo this season as well, then in the future add in an Axiom 12 (2nd station) and the RV-220 transducer pair. With this boat, I do more cruising than fishing, so for the short term due to costs of already spending a lot of $$$, I would like to know if I can use my current Raymarine tri-transducer or install a bronze through hull transducer to give me temporary depth and possible bottom tracking until I can save up for the RV-220.

I currently have an older Raymarine Tri-data display (exact model unknown think its an ST60), is there a conversion cable (like the A80328) that will let me use it's transducer until I can upgrade to the RV-220?
Or could I purchase the CPT-S (E70341 or A80447) and connect it directly to the 9RV for the short term?