I can understand the concern, but there are a great many liner boats afloat, and few problems would require cutting holes in the liner. If you take a close look around, you will see that builders place strategic gaps in the liner for access to thru hulls, outfalls and transponders. Catalinas have easy access wire raceways behind and above the settees, I assume other builders do something similar. My Catalina
350 even has a water
system manifold in the bilge
, so there are no hidden hose junctions. If you have to replace sanitation hoses at some point, you can snake the old ones out behind the liner trailing a messenger line to pull the new ones in.
The use of hull
liner construction has come a long way, and has made great boats affordable for many sailors. Removing the liner would destroy the engineered hull strength and stability, and since the hull was designed for that support, back-engineering hull dynamics, reinforcing the hull to withstand timber forces, etc. would be an enormous effort and very expensive. You'd probably lose years of sailing and spend more than you would if you found an older design without liner construction.
Or, you might consider doing what many of us have done, buy the prettiest and most seaworthy
boat you can afford, and take the chance you may have to drill a hole in the liner some day to reach a hidden bolt or fitting. I've had two liner boats over the last 14 years, had many wonderful days of sailing and more than a few hard days sailing, and haven't had a liner-in-the way problem yet.