Shortest possible bar length when using risers and shifters??

Hi, after riding singlespeed for a long time I am building a bike with gears again.

But, I need a riser (old, stiff back) and I want the cockpit to be very narrow. I know I won't be able to maintain the 42cm width that I have on the Nitto B260AAs that I typically use, but I want to find out how narrow I can keep it.

I think what helps is having a shift/brake lever combination as they consume less clamp width compared to separate brake levers and shifter pods, and as I am using road brakes, I will have to look into what the mid 90's Shimano range was offering. Ideally the bike will have 2x8 gears, probably 600 Ultegra front/rear derailleurs. Is the XTR ST-M900 the only shift/brake lever combo that has 3x8 gears, no ugly gear indicator and is ok with canti/road brakes? Or did I miss one?

What I do not want is thumbies. If I use gears, it must be the proper way, Rapidfire style.

Also, I am not sure about the risers. These look quite close to what I need, but the brand is chinese unknown. Essentially I need a 22.2 riser that has a very narrow, steep rise (middle) section that does not consume too much width on its own, which would be the problem with most normal MTB risers. The Nitto B220AA would be good, but I think it's too short in total (480mm will probably not be enough to fit grips and shift/brake combo?). Perfect thing would be a Nitto B220A in a width like 520-540mm, i.e. with a (straight) grip area of 160-170mm on each side.

Let me know your thoughts!

Just get those and get the hacksaw out. Do it.

You got me wrong, I think those risers in the link might be slightly too short!

Anyone ever tried these 2x 20mm handlebar extensions? might do the job

BLB mini me bars have a good size flat given their total width. I know you can fit grip and brake lever, so a combined brake/shifter should work.
Worth taking a look.

Any difference to the Nitto B220? as those are actually 1cm longer than the mini me?

You know it's 2020, and you should be on bars that are at least 800mm wide?

Only on Wednesdays, surely?

1070s or gtfo

Ok, I resolved this. If anyone has the same issue, here's my recommendation: the ST-M567 from the 1996 Shimano LX which is for 3x8 (or 2x8) gears but still was made for Canti brakes which means it works with road brakes (as levers designed for V-brakes will not work!):

The gear indicator can be removed easily, and then it's the smallest, least handlebar estate consuming shifter/brake combo that works well with a narrow-handlebar/riser equipped road bike setup. Much smaller than the only other alternative which would be the 1994 XTR (ST-M900), and with a very minimalistic, timeless shape I think, reminds me a bit of Paul levers.
Bars are going to be the Nitto B220 with the previously mentioned Controltech Terminator 2x20mm extensions so it's probably going to be 520mm in the end.
Hope thats helpful for someone.