So if I buy the Helix 7 for the console what unit would be best for the bow, do I really need another Helix 7 or would something with less features be best. Or is the another set of units for $1500 that would be better.
IMHO, the Side Imaging versions are "best" for the bow or console, you can settle for less technology if you want.
If you like the 7" display, there are six Helix 7 models.
The next size down is the Helix 5 and there are nine versions of that.
There are SI models, DI models, 2D models and some without GPS/mapping including KVD SI versions with red bling.
Pick your price range and technologies.
The Helix series is replacing all the models that have numbers in their model name (688ci HD DI Combo, 999ci HD SI Combo, 859ci HD DI Combo, 1199ci HD SI Combo, 1159ci HD DI Combo, etc.)