Thanks for all!!!
Yesterday removed it sucessfuly. Not so bad as it looked. Shaft with internal levers isnt so small, so it doesnt fell to the bottom. Biggest job was to remove vacuum stop element, which one bolt was under ADA "mushroom" that there was no space for conventional tools. I was not sure about removing ADA so shortened and modified wrench without success, after that shortened small 10mm 3/8 socket, welded 10mm nut on socket top and turn the bolt out with 10mm wrench. After vacuum element removal found stop lever shaft in that black hole at the engine side and picked with magnetic pickup tool.
Now left to correctly install it back and lets hope I doesnt got diesel run away