Thanks for looking all. To answer a few queries....

Mulleady, I also think the brown corks don't jive well with the bike's color scheme either. I used it because I didn't have any end plugs lying around and to prevent the bar from exacting a core sample from my thigh in case of a spill I think I will get a black marker and color the cork so that it doesn't stand out as much. I will be installing the left shifter soon, wait for the report

poboxnyc, I have several skate wheels ranging from 56mm to 100mm and I tried several combinations. This combo seems to work out rather well as far as rolling the folded bike goes, so I stuck with it. it looks quite nice too!

Invisiblehand, I used a hi-rise (2.5 inch) Azonic WordForce bar. It is a standard MTB bar that has a 5 degree back sweep so that the wrists are more comfortable. My setup, with the handlebar and bar ends widens the fold a bit, but for my purposes it is too minimal for concern. I believe that for those with an M-type handlebar wishing to go to the lowered stance of an S Brompton, this is the way to go instead of getting a new S-type stem assembly and a flat bar.