The problems you state are pretty serious. In case you didn't know, the first generation Legends start out in 2nd gear from a dead stop. What you should do is go spend $50-70 to get your transmission flushed, If the symptoms continue, you should be looking at
www.car-part.com for a transmission. You do need a lift to do the tranny job. Don't do it without one. check out
www.acura-legend.com, click on the forums.
Mike Diaz