Thanks for looking.. need some fast help .. I am trying to get out of town with a buddy to Yellostone

I posted earlier about my buddies car not shutting off... 80 240d
http://www.peachparts.com/shopforum/showthread.php?t=135365

It is not the vac pump.. I hooked up the IP shutoff device direct to the vac pump and it shuts off pronto.

where we went wrong is when I repacked the front wheel bearing.. prior to that everything was AOK. The pads needed to be spread apart abit to get past the ridge on the disc.No problem there until I completed the bearing pack and put everthing back on ... thats when I had no IP shutoff. I know is sounds unrelated but by spreading the caliper apart we must have affected something. Now I have brakes but the booster seems affected. When I press the pedal down it stops but gets real firm. Did a search and replies say bad booster. Again I have good/great vac coming from the vac pump. I can't figure it out. I don't buy the coincendce theory.
So now that car won't shut off or at best takes 10-15 seconds and the brakes feel real hard as I press mid point.

what do y0ou guys think?... I'm trying to leave town to take in one last trip through yellowstone park. Not sure why we are taking the benz since gas is $2.50 a gallon now anyway all help appreciated...

bennett