If the budget is limited at X and he spends a third for the boat he just has to prioritize. Barrier coat is out - slap a coat of bottom paint on and after checking the through hulls its good to go. Everything can be bought used except rigging related items. Engine - if it runs well just buy spare filters, belts, and an impeller.
Engine for dinghy? Rowing is healthy. Yard charges for a year? Except for checking the rudder, prop, cutlass, and through hulls there is only bottom paint. What are the other 11 months for?
Good thing you weren't around in Columbus' time - he would have stayed home.