Selling my aerotec, what is it worth?

[69cmw]

I am about to sell my Bombard Aerotec 380 - year 2010, Brenderup galvanised trailer - year 2009 and a Mariner 25hp, the engine is about 20 years old and in perfect working order, it had been stored for about 12 years of its life and not used.

I am just wondering how much I could expect to get for the complete package.

Craig