The skirt is super stiff. It's leather is even thicker than the top of the seat and, it's radius makes it even more rigid also.  I may just design another one that would come out from underneath from the back and then goes around. Like you said, then if I don't like it, leave it off and I'm out nothing but the fabrication time and frankly, that's half the fun.  

I'm not understanding your idea I'm afraid.  Maybe I'm "dense"?  LOL  Can you draw me a diagram of your solution maybe?  Like you said, I REALLY don't want to mess with my gorgeous seat. BTW, I have managed to darken up the skirt a bit using neats foot to match the bags even better since last posted

I've been looking at this seat rail I have and got to thinking about seeing how I'd like it, if I installed it.  Problem is, I have to put a hole thru the leather skirt and I'm not sure exactly where they need to be located.  I figured IF I didn't like it, I could just install a conch over the hole and be none the worse.  My question is...How do I locate exactly where I need to put the holes?  Only way I can figure is to get an original seat pan like mine and simulate it/match it up to figure it out.  Anyone have a better idea or, would maybe consider sending me a seat I could use as a mock-up in order to figure out the hole placement?  Alternative ideas, please post them.  If you have an old/unused seat pan you'd let me use, please send me a PM and maybe we can work something out?

I admit I don't know much about them but, isn't $3900 a bit high for a bike like that without the original motor, etc.?

I would guess there's rubber gaskets inside where the on/off valve goes thru also that would need replacement you think?  (BTW, it's made in Taiwan LOL)

I'll look into that.  That sounds like the ticket to have a rubber sleeve that seals between both the wall of the plastic line and the barb.  As for the sediment bowl, I wish there was a small sediment bowl that also had a filter in it like the old model A had.  Wonder if a guy could adapt a small paper filter with a spring in the bottom? 

I'm considering using this nice S.S. high pressure (F.I.) 3/16" fuel line I've had left over from a "high buck" bike project I did awhile back but, the AN fittings needed for them are kinda "showy" and expensive.  I might be able to adapt something to use it tho?  Hard part is separating the braiding back a bit from the Teflon core and then getting a good seal without the "proper fittings".  Luckily, it's only gravity pressure tho.
I wonder if it's same O.D. as that plastic/Teflon line you used and painted copper?  Did that use the brass ring type compression fittings P.D.?