If buying both is not an option, I would work a deal to get the Honda, the '88 is a good model year (especially if you are looking for a restoration project). :thumbsup: If you get a good deal on the Honda, you could sell it later and probably get exactly what you paid or more for it.
Even though Honda has discontinued many of the genuine Honda parts, I have had little or no problems getting 250R parts. That, of course, could change depending on demand...