Scott, Looks like you are going to have to find out the hard way, by checking each switch and seeing what it does
. It also looks like you also have fuse holders next to the switches. I assume each fuse relates to the switch it is near. you may want to pull the panels loose and see how its wired behind them.
Do you have twin engines or a single? After looking at the spec sheet, I think you may also have twin fuel tanks since a fuel tank selector valve was optional, so if you do unless you have two fuel gauges, one switch will be for your fuel gauge. It will likely be a 3 position momentary switch, On/Off/On. If you have twins, you likely have two batteries, if you only have one volt gauge, look for another 3 position momentary switch for that. You should have one for the horn, that should be a 2 position (On/Off) momentary switch. Your should have two switches for lighting, one 2 position On/Off for Panel lights and a three position, On/Off/On for Navigation and anchor light. There should be a switch for your blower(s) and lastly you likely have one for the bilge pump, typically it will be a three position (on/Off/On)switch with one direction for auto (works with the Float) and the other for manual (add a switch for each bilge pump you have, I'm guessing you only have one.). I'm also going to guess in the second photo with switch at the top middle that has a small indication light to its top left is the bilge pump switch. Generally the light comes on to let you know that the bilge pump is running.
I think that covers what you should be looking for them to do...Horn, blower, bilge, nav/anchor lights, panel lights. and maybe voltage and fuel.
Let us know what you figure out. We'll help anyway we can.
