Good job - life is always better with a bigger Trace Elliot stack!
Re the badge on the 15, lots of people who like this orientation took them off because they didn't like the badge on sideways (I do, and then hook them back on). I suspect if you look closely at the grill on what would be the top right in the picture above you may see some signs of it being removed. If the logo on the 2x10 is riveted on this will be a very late example of these cabs, possibly left over stock from when they went to Peavey.
Although I haven't got this specific head I'm pretty certain there wasn't a black light. Instead everything green will fluoresce under black light. I bought some very cheap black light strips from ebay when I did my cab project and they make the amps look awesome: