Fix for Cowl Shake and Body ?

Thanks for the replies. I already have a lot of "Road Kill" sound deadener material installed, but next spring I'll do a better job by installing more, especially in the trunk and quarters.
I'm also going to find out about the US Car Tool stiffening kits and see if there is a way to reinforce the door post latch pin area. I don't think the bar idea would fit with my A/C setup.