Your SL is absolutely beautiful, and has a build quality equal to the fabulous M3, IMO. The sound of the shutter escapement alone is enough to send mechanism freaks into a state of rapture.
At risk of being thought a Luddite, and I seem to be running that risk a lot lately, what is all the fuss, and high price, associated with the R6/6.2? After finding that Leica buyers really weren't all that impressed by Minoltafied automatic cameras, Leitz went back to basics with the all mechanical R6, and made some very minor tweaks with the R6.2, to produce a camera which is pretty well a re-issue of the old SL/SL2. I have used the SL and SL2 a fair bit, and only once or twice played with someone else's R6, but as far as I can see they are the same animal with different skins, with to me a subjectively-better feel to the SL's.
SL's can be had for very reasonable prices on ebay, and R6.2's at three or four times as much; what is it that makes people pay so much for with the newer camera?
Cheers,
Dez