You can Ethernet the 798, 898 to the 998 at the console with a single cable, set the units up to share and accomplish what your looking for. What you need to consider is what screen size you're wanting at the bow. The 798 will work fine however, with the smaller screen I usually recommend shooting right or left as shooting both directions takes up a lot of screen and you will loose some detail. If I were purchasing I'd go with the 898 or 998 up front also if you want SI/DI on the bow.