Ross I went with the 942 which will be dedicated to my radar and the 1243 because it has the capability for side scan. I added the g3 vision mapping which is basically the NOAA bottom scans.
https://maps.ngdc.noaa.gov/viewers/bathymetry/
In the viewer turn off the two checked boxes on the left and turn on the two boxes with BAG footprints and shaded relief then pan and zoom into your favorite rocky areas.
Wayne, yes I'm a little nervous, however the pioneer version of my boat (same hull) has a doghouse of similar size (slightly narrower). Im thinking I'll bolt the doghouse down temporarily with minimal screws make my steering, and wiring connections, then sea trial it in case it needs to be shifted forward or backwards. I have some room to play with in either direction. If it doesn't work it'll be the first time I've ever been seasick.
Posted from my iPhone/Mobile device