finsrin,
there was a 1/400th transporter as part of a resin launch-tower kit. But I think it would be esier to start with four 1/72nd Churchill tanks or maybe if you could find something suitable in a toy shop -- I had a look myself & it seems too expensive + lots of scratch-building with plastruct girders.
The Ming-5s can be altered from a Mig-15 which is what I used for the line-drawing. A 1/72nd model based on a F-86 Sabre or FJ-1 Fury kit gave me the idea for the wing shapes - just need to do new wings & fin.