WELCOME TO THE FORUMS!!!
Hate to be negative, but while these are still avialable from a VERY few long-time- in-business dealers as "New Old Stock" they are going to take a huge bite out of your summers boat fund!! What ever suggested retail was at time of discontinuence, dealers add 10% (or more) yearly as hedge for inflation and interest on borrowed money they operate on.
I had been using On/Off/On switch mounted in dash for couple years, using original shifter as throttle only.(Really works very well, once you practice, just don't flip switch while above idle:brokenheart
When we put boat on market, knowing it would have to be surveyed because of age I felt this bit of "engineering" would get bad marks and require replacement before sale could be completed . Did Goodle search and finally found two dealers with part in stock. One asked OVER $300. for one (1) switch!!!! Made me feel priviledged to finally buy one for $195.00!! Thats been a while back and I left invoice on board as reference for buyer, but if you're still interested I'll see if I can find out who it was.
I carry a gun because it's too tiring carrying a cop.