Ok then you have a few options, my iphone is charging so no pictures but:
I use AW IMR's they are a bit(few mm's) shorter then some other
batteries so I can ONLY tell you how it will work with them.
18650 + a kick:
1) You can use a stock GGTS and have the telescope all the way extended with the spring removed from bottom post. You will have the first SS thread ridge showing on both top and bottom. It's not the thread itself just the first polished SS ridge and it looks pretty natural.
2)2 top tube total(you would
buy 1 extra) This looks better to me. Two total top tubes and the Telescope is barely showing with a spring still installed. Can't quite get it not to show with the spring removed.
2 18650 no Kick:
1) 3 top tube total(you would have to buy 2) This barely works with the spring still installed. I didn't try to take out the spring but you need to leave a few thread showing and telescope all the way extended. I don't like it.
2) 4 top tube(you would need to buy 3) Works well, only a bit of telescope showing with the the spring still installed.