Axiom 9 Pro integration question

[ktyminski]

I am installing a Axiom 9 Pro into an older system. The system currently has RN 300 GPS, Pathfinder RL70C Plus, ST 40 Depth ST 6001 AutoPilot,
Raydome 2D, DSM 250 Digital Sounder Module. My plan was to stop using the RL70C and for now go with out Radar as I really do not use it anyway.

I am planning on connecting the ST 6001 using NEMA0183 because the course computer is a 100 and also connecting the ST40 using NEMA0183. However I forgot about my Horizon GX1700 and if possible would like it connected to the Axiom 9 Pro. Finally I would like to connect the the transducer from the DSM250 if possible which is a RAYMAINE B256 using an adapter cable.

1) Can I hook up the St6001, ST40 and GX1700 using NEMA0183? It looks like there are only 2 Ports.

2) If I can not hook up everything in question 1, could I connect up the ST40 using a Seatalk to SeatalkNG converter? If so what else would I need?

3) Is there an adapter cable that would interface my B256 transducer to the Axiom 9 Pro?