I'am actually working on a Master for Retrokit: a conversion set for the "Cute" Me 109E from Tiger Model, to transform it into a Bf 109Z.
Of course two kits are needed; as also the RetroWings conversion set for a Bf 109G (two sets to be right).
Here is my actual work: I'm making the "central" wing after having cut and joined the left wing of the right fuselage and the right wing of the left fuselage. I've also filled the right cockpit.