[turp mcspray]

With the top in place, your fire wall will stay put. How do your doors fit now? I wouldn't worry about bracing anything. Get all of your bolts loose, then start replacing mounts. Note any shims that the factory used. Once all the mounts are in place (don't tighten any bolts yet) see if your doors fit the holes. you will have to jack up the body in places to make the gaps right. Once your doors and gaps look right, fill in any gaps between the body and your bushings with shims. Tighten up your bolts. If you have a gap and just tighten the bolt it will move the body around and mess up your gaps. Look in the factory assembly manual. It has good pics and a description on how to make adjustments. Don't try to overthink it and make it difficult. If the doors and gaps are looking bad, you just have to do some shimming. Not a hard job at all.