Somewhat late to the party.. but I am in !
Backstory
From the end of WWII, much of the German Technology became available to Britain. Some of this triggered further research and led to some ground breaking discoveries, some successful, some.... not so much
The Longbow Anti Tank Missile vehicle was a "not so much"
The first generation missiles were slow, heavy and short ranged, but they did provide lots of great experience. Some of the early missiles were mounted on older chassis such as Achilles SP gun chassis to explore the SP ATGW concept.
The experience proved that they were vulnerable and could not carry enough reloads, but nonetheless, they were thrown at the Russians and the when used successfully the Missile could easily take out the JS-III and early T-44 series tanks.
I had an old "not so accurate Academy Achilles that had been ratted for some bits, so this build seemed perfect to be used as a chassis.
The turret would probably be clunky, but still allow for under armour reloads, even the the vehicle could probably only carry 4 reloads.
So some card work produced a reasonably suitable turret, but more details for flesh out such as some up armouring and working out how exactly to guide these things.