This is an image from the Tamiya website but I can assure you that my Kanone looks identical. Being a motorised model the tracks are a little chunky but that aside it's a lovely thing. In term of scale it works out nearer to 1/40 but I can live with that.
It soon occurred to me (as it had to the 1960s Bundeswehr) that a 90mm gun is all very well but what if these new-fangled guided missiles catch on? Their solution was the Jagdpanzer Rakete with the 'kanone' replaced by er, 'raketes...' SS-11 to be precise.
I decided to copy those clever Germans and another model was soon on order.
When it arrived I set to work removing the gun and it's mantlet. I had expected this to involve a great deal of razor saw action but the gun assembly turned out to be a separate part which was easily(ish) prised off.