Buy a used PFS, dial it in for how you shoot and then decide if you really need a "fitted", wooden stock. If so, take the gun with the PFS to whomever will do the fitting as the starting point for his work. Used PFS stocks can be found for about half of the list price and can be resold if you decide on a custom stock.
A problem with the fitting process is that the fitter will be reluctant to take off too much wood and you can assume the fit is correct if it is close but not actually correct - based on several personal attempts with semi-fitted stocks. An answer to this problem is for the fitter to make a pattern stock, usually with bondo that can be easily removed and reapplied as determined by shooting with it for a few months. This process works well if you and the fitter are close so that you do not have to fly to and from his location for stock adjustments. Having a PFS that has already been set via the trial and error process helps reduce false-fit issue.
For reference, PFS stocks have been on two of my guns for almost 20 years. A custom stock was recently produced for a third by the method outlined above - without the bondo iterations. The custom stock is almost identical to the PFS used to establish the dimensions and seems to be working well without multiple trips or shipments to the fitter.
Regardless of which path you choose, getting the fit right is likely to be one of the best things you can do to improve your shooting.
Good luck,
Pat