Also have a read of this thread
I've checked the 224 ORB and it usually gives the weapons fit for each sortie, RPs aren't mentioned after early 1944 - I'd have to look again to see exactly when. I've also been in touch with @Terry @ Aviaeologyabout K.O.Moore's aircraft and the sheet was put together with help from the pilot. Unfortunately memories appear to have got mixed up over time and while Moore may have flown an aircraft with RPs (I haven't checked the ORB) it doesn't seem to have been on the 6/7th June. It's also unlikely from the delivery date that BZ792 had 2 tone upper surfaces and I'd need to check Flintham's book "Combat Codes" but I don't think it had code letters XB but was still on the unit/base numbering system. The generic grey used by Aviaeology should have been Light Slate Grey which has a greener tone to it. There is also the possibility the code could have been in Red but although there are some photos of CC aircraft where Red is the obvious interpretation for the codes I've only ever seen it documented for long range Beaufighters so there must be some documentation I'm not aware of somewhere - maybe @Paul Lucas has seen it? Unless something turns up I'd stick with LSG for the codes.
I too wanted to build BZ792 as it seemed to be a St.Eval based U-boat killer with RPs but sadly it just doesn't fit. So now, having missed out on the Eduard Riders in the Sky GR.V kit, I have to make my own decals for the other possibility -Terry Bulloch's aircraft - as a wanted post has failed to find the fish nose art from one of the kit options. At least it goes on a white background so using my laser printer will be fine.
There is at least one photo of Moore and crew in the IWM book on Coastal Command, and presumably on the IWM website, from which you can glean some details like silver paint on the de-icing boots, logos on prop blades etc.
My research notes are scattered around the hard drive and I haven't pulled together everything from there, various BM threads and the ORB into one place. Even so @EwenS has much more detail than I do. His comment on LL vs RP makes a lot of sense - K.O.Moore said of his double U-boat kill he didn't use the rockets as they would have ruined his night vision, the voice of experience even if the exact sortie may not have had the rockets available. Just flipping through my drive quickly the only photo I have with rockets and LL is of the trials aircraft which also has both ASVII and ASVIII fitted.
Another thing I would have liked on a model - LL and RP - shot down!