The brochure proposal actually did away with all the guns in order to make space for more electronics, which as far as I could see consisted of a doppler nav system, air-to-ground modes for the AI.23 radar and AS.30 guidance electronics. Bear in mind that this was all in the context of a low-cost retro-fit to the existing 1950s electronics, so extra black box space was needed, and fuel was considered the priority for the belly tank. Interestingly, they seem to have gone out of their way to
not use the overwing pylons. The mod also retained the ability to use the existing Firestreak set up, though not at the same time as the bombs, thus preserving the fighter capability.
There was a later proposal called PL.1 (details in Chis Gibson's
Battle Flight book), which mostly used a T.5 airframe, that had a longer belly tank which extended over the original missile pack location and had a new detachable pack further back. I think you could model this using two of the Freightdog sets and cutting them up. Options for this pack included:
All fuel
Recce cameras
2 x Red Top
2 x Sidewinder plus some fuel
4 x Sidewinder plus some fuel
2 x retractable 51mm RP launchers
2 x 51mm rockets pods plus some fuel
2 x Bullpup plus some fuel
1 x Semi-recessed Genie
3 x Semi-recessed N1 1000lb bombs
I love Lightnings and this looks like a must have! Would go well with a four cannon nose....
That would work as more of a CAS type aircraft than a strike job since it wouldn't have room for the nav kit. You could combine it with the retractable 51mm rockets launchers that were an option for the missile support pack area.