One would expect the X-5 L1 to fetch something in the high $2,000 to low $3,000 range. The L1 is the premier model of the X-5 series. SIG Germany produced a bunch of different colored models that were plain Jane along with a couple of models that looked like the L1, color wise. Nice guns, but not the performance level of the L1. I owned a X-5 Competition and still own a X-5 L1.
A few months ago I watched a couple of guys shooting a 1" bullseye in a 5" target at 7 yards. Their goal was to completely cut out the red bullseye without touching the black outer ring. When they finished, I stepped up and found out they were shooting the L1. I can't do that well.
I also owned a X-6 L1 which I shot it much better than my X-5. I think I'm a wimp and control pistols with 6" barrels better. When I sold it, it went for $1,500+ over original purchase price.
Also, there were two generations of the X Series p226s. Generation 2 had a rail under the front of the frame and had a slightly different shape of the front of the slide. The X Series were still available from a private importer after SIG USA ceased importing them. Those available from the private importer were priced much higher than the SIG USA imported pistols. I'm not sure if that importer is still around.
IMO you should make the trade, shoot the pistol and see what the market does. I've made out well in selling my German made SIGs. And, they're fun to shoot.
