Regarding the AC12 vs. an AC42, in the manual for the Raymarine
Type II Linear Hydraulic Drive System the specs look like it is roughly comperable to the Simrad HLD2000L for which Simrad specifies using an AC42. Given the size of your boat and the relatively small difference in price
, I would think going with the AC42 would be the safe bet.
Regarding the SimNet cabling, while it is a proprietary connection, it is in fact NMEA 2000
data being transmitted and you can get SimNet to NMEA 2000
pigtails that will allow you to connect your Simrad gear
to a standard NMEA
2000 backbone. In fact, that is what we did on our boat using Maretron for the backbone and majority of connectors and SimNet adapters for the Simnet gear
. It sounds a lot worse than it is, things really are plug-and-play. We have Simrad, Maretron, Airmar and Volvo
N2K sensors and instruments all coexisting nicely on our boat.
You might want to look for bundle / package deals from Simrad. When we bought our gear (last fall) we received $700 in rebates... I don't know if they still have any deals like that running now.