2001 265 Sundowner owner here. The boat does seem more rare than a unicorn that farts glitter. That is until you drop in at the launch at Grand Haven and see about 15 of the damn things. LOL!
Yours is the first black graphic one I have seen and I LIKE that color combo. Ours is blue but we have the swim platform. I suggest adding it on for sure.
I have been fiddling around this year replacing about everything on the front of the motor. Fuel pump. Sea water pump. Water pump. Idler pulley. Tensioner pulley. Belt. Plugs, wires, rotor and cap. Going to do the gimbal before layup. I suggest using
www.michiganmotorz.com for parts if you will be doing your own wrenching,. I have saved almost $800 over buying the parts at the dealer.
And the beeeeeeep you hear is a warning alarm. It is LOUD and sucks but you will get used to it.
Another tip I have learned after spending over $700 on that fuel pump assembly. When you turn the key on before starting the motor, let the pump prime. I actually cycle the key twice on first startup at the ramp now. Don't know if it helps but i guess it can't hurt.
Did you get camper canvas with it?
Here is ours.

I JUST finished this up tonight. A little LED lighting for when we are out after the sun goes down. We have a vacation in a couple of weekends. Hot Boat at Hardy Dam. We will be on the boat for two nights. The LEDs are just a kit off eBay. $30 for 16 feet of adhesive backed lights.
https://www.youtube.com/watch?v=K00ON0YC7VcEnjoy your boat. Ours has been virtually trouble free.