Most people don't realize it but it is really rather easy to make building or rehabbing a sailboat a whole lot more affordable...
For example, let's look at hatches since I recently replaced a few on "So It Goes".
My options were to buy new hatches, try and find used hatches, or build new hatches. Of course, it's really a little more complicated because there is a real plethora of hatches available at a variety of price points and quality levels...
Take this Bomar for instance...
It's a really nice hatch, it's stainless and seriously heavy duty! The problem is it also costs way more than I care to pay at $849 for the size needed.
On the other hand, I could always go with a less expensive hatch but the cheapest I'm going to find is going to be around $300 or so... Not happy making!
Used ones always seem to have issues as people mostly replace them when they leak so there is a good chance I'd just be buying someone else's problems.
So why not build? The material to make a strong and leak-proof hatch are at most (including hardware) $75, it's an easy project well within the abilities of anyone who can walk and chew gum at the same time, and they're more likely to not leak than the various expensive made to order hatches available these days... Do I hear an AMEN!?
The three hatches I recently built for our boat to replace the leaky Lewmars took a half day of less than inspired work while costing a sum total of about $60 for the wood, glass/epoxy, and hardware. So you might say that I've saved between $840 to $2487 dollars.
As far as I know, the best discussion and how-to of building hatches is in Fred Bingham's "Boat Joinery & Cabinetmaking Simplified"...
...It's always worked for me.