Rob & Charles,
Thanks for the comments and suggestions. I think adding some kind of deflector on the top edge is a great recommendation and I'll work on that. In addition to shedding water it would also add a bit more strength & rigidity to the front armor section (which is 'just' 1/4" plate)
I now have the left side all welded, smoothed and primed and it should be a relatively easier task of just mirror imaging the right side now. Unfortunately, due to work

and a virus

I haven't had much time on the carrier.
Hope to make some progress before long and will definitely post some pics.
In the meantime, I wonder if someone could just help me out with one or two measurements (please..)

. Can someone let me know how deep and wide the two side air inlet boxes on a mk1 are at the top. I think I can figure out the height and angle from rivet holes in the hull, etc.. But, in particular, I cannot tell how thick it is from photos (which is all I have to go by).
Thanks for the help...
Ross