I agree it is obviously a G5.
Look carefuly at the pic Blowhard provided and the small ventilation intake, just below the windshield, is not present, meaning that the plane has a presurised cockpit ie G5 variant.

Also look where the radio antenna wire joints the fuselage, close to the tail.
Claes' version has got these two details right.
I think that these two tiny details should be corrected, other obscure details are just matters of interpretation as already mentioned above by Baron.
PS I found another pic of the a/c in JAGDWAFFE Vol.5, Sec.1, page 34, that reveals another tiny detail that Claes' profile depicts right:
The white tail paint stops at the stabilasers height on the upper side were the tail joints to the fuselage.
I also noticed in Blowhard's post pic that the Wr. No and caution stencils were masked when the special tail paint was applied, thus their backround should be the original factory finish.
Claes should have made this observation too that's why he depicts all the caution stencils in this way.