For more information about the Boston Whaler GTX 18 see the CETACEA collection, PAGE 26:
http://continuouswave.com/whaler/cetace ... age26.htmlMany prior discussions about the GTX 18 can be found with this
search inquiry;
I doubt that the GTX 18 and OUTRAGE 18 are the same weight. The GTX 18 contains a great deal more interior components and is probably about 150-lbs heavier, if not more.
The difficulty of accomplishing a restoration of an older Boston Whaler boat is mostly determined by the present condition of the boat, not by the particular model of the boat.
The value of a used older Boston Whaler boat is mostly determined by its present condition, the engine, the trailer, and the included accessories.
The present day market demand for a particular model is likely to be strongly related to the historical demand. When boats were in production, you can base the market demand for a particular size and model on the number that were built and sold in that era. For example, if a GTX model were more in demand than an OUTRAGE model, one would anticipate that when they were being produced there would have been more GTX models made than OUTRAGE models. In this particular instance, there were probably 1,000 OUTRAGE models made for each GTX model made. I recommend you base the present market demand on this historical market demand.
When buying a used Boston Whaler boat, I recommend you make your selection based on your own preferences. If you think you would prefer to own a GTX 18 instead of an OUTRAGE 18, you should follow your own preferences.