Looking at possibly buying a 2017 179trx. Its got the 115 mercury 4s on it with a minn kota fortrex. Also comes with a Lowrance hook 5 in the dash. Would obviously want to upgrade that to something bigger. Dealer is asking 18,900 for it. Is this a good deal? Also how do other 179trx owners like the boat? Pros? Cons? TIA