A quick update: looks like I'm just about ready to start welding the outer cowl, inner-to-outer cowl and inner cowl pieces in their final places. I've drilled all of the holes for the plug welds and used the weld through primer on all of the hidden weld locations. I also used an under coating on inside areas that will not be welded. The undercoating is visible in the two pics that show the inner and outer cowl pieces. You'll note that the undercoating does not go 100% of the way to the weld area, but close. My thought here is that the seam sealer will fill that space. My goal was to use the undercoating to help dampen road noise. I've tapped on the coated and uncoated areas and frankly, it is underwhelming. No bother, though, as the undercoating is rubberized and should help keep corrosion at bay. Live, experiment and learn. You'll also note that I'm using the hood hinges and the fender bolt holes to help ensure alignment of the cowl pieces. I'm hopeful that by doing so, I'll keep the factory orientation and relationship between the parts. Hanging that door will be something else, once this is completed! So, if anyone sees something amiss, speak now...'cause the welding will start in the morning! As always, comments and suggestions are welcome!