I don't have the MGEX, just the base MG but that one looks f'n awesome. The MG Strike Freedom was fun as f to build so I'm am pretty sure the MGEX will be fun too. But I think you are making a mistake with the Gloss top coat. I'd go matte with the exception of the gold pieces.
Intel 486, Integrated videocard, 16MB RAM, 64MB HD, 3 1/4 inch floppy