The mast on my Legacy does lean forward and that is how it was delivered from the factory. BUT that is when the boat is sitting in the water on its own. When I add a six HP outboard and a 100 kilogram sailor the boat sits down at the stern and the mast tilts backwards. If I move forward towards the cabin the stern rises somewhat ,(mast moves forward again).
My advice is to try it as it is. If the boat sails well there is no problem! If there are problems e.g. excessive weather or lee helm, that is the time to try adjusting your mast rake.
The Legacy is a small yacht and is therefore sensitive to where the load is placed, I assure that the appearance of your masts verticality will vary accordingly. Ignore unsolicited inexpert advice, (including mine if it suits you).