If you are still in the need of advise, I just went through the same thing only with a 997 and an 1197. I sold the 997 and went through hell and back trying to find an 1198 that wasn't $2500. I found one for $1977 on line new in the box. Trust me you will NOT want to have 360 with out an 1198 or 1199. I was then hoping the interlink would still share way points! Nope. I then ohad to buy the Ethernet switch and luckily the 1197 was Ethernet capable. If I was to do it all over I probably would have purchased the 1199 since I had to get the Ethernet switch anyway. I went with the 1198 in hopes the interlink would still work knowing that it would not with the 1199. Sorry but you will have to bite the bullet and get two new units. If you are a tournament fisherman or really serious it is SO worth the investment. Good luck!