So I have this Shining Magnus armor set that my friend gave me. But he kept the cab. I have been using a transparent G1 prime as a cab. At Botcon, one of the dealers was selling transparent primes and he had one that was yellow!!!!! Perfect match. The only issue is that the yellow plastic of prime does not fluoresce under UV or blue light like the armor set does. But looking good!!!
A little update on pics. For those of you not familiar with Shining Magnus, he comes with a solid yellow cab with black head and legs.