Hi gringo_gus,

What exactly you don't like about the M-bar? Shape? Too narrow/little space? I don't know about the mods from Maranen or EvilV. The m-stem is very low, so a flat bar will probably be too low. For modifications the s-stem is the best because you get reasonable hight with that stem. But here some ideas for m-stem if you like:
What you could do is, fit a riser-bar with less (the m-bar has 13cm rise) but still quite a lot rise and so have the bar a little lower. (eg. NS-District high rise bar has 8,5cm rise). That will give you a lower and wider bar.
http://wos-shop.de/product_info.php/...4c8330c58f1e04
Combine the Aberhallo-clamp with a moderate riser.(Like littlepixels mod. but you would need a higher(=riser)bar and you don't need to have a quick release if you have the clamp upwards instead of forwards).

Like some front suspension? You can get the "POST MODERNE Suspension seat pillar" used as Handlebar suspension (needs cutting the stem and if done by Steve Parry probably not cheap). Or without cutting needed but a little heavier a suspension-stem-extension made in Switzerland. I only know a german dealer who sells those - will give you about ~6cm rise.
http://www.faltrad-direktor.de/faltr...pen/index.html

What I was wondering: what about cutting the stem and fitting a modified Thudbuster S-Typ (short version) with the softest elastomer available from Cane Creek as a front parallelogram suspension. Folding should be no problem. Anybody idea if this could work?

Ups LittlePixel was faster ;-)