New to poweboating 95 29ft scarab
 

I just purchased my first boat recently and am looking for a little help. I bought a 95 scarab 29 ft. With a mercruiser 502 it needs cosmetic work so will be a great winter project. First off what prop should I be running due to the current one is pretty beat up. Next where do I purchase or even find parts for these boats the trim cables to indicate angle they are at are broken and I don't know if I just don't know what to look for but I can't find anything are there any recommendations on products to use to fill in chips and small cracks in the gelcoat so that I can repaint and wha products would be best to use? I'm excited to own my first boat and think it will be a lot of fun minus the bring out another thousand that boat stands for thank to guys for your time and help