I would do the 899 SI at the console and 859 DI at the bow, go ahead and get the Link, have had them both and like the Link better. Here's a link to BBG, Brian is a site sponsor and great to work with, bet he can put you an excellent package together. Call him, don't just order off the website, he may be able to help you some.
http://www.bbgmarine.com/index.php?m...2fgo0k97vuiiq0