Kora Models has just released a 1/72nd Hirth Lastenträger (resin) & Messerschmitt Bf.109G (AZmodel) in Mistel configuration - ref.72019
Source: https://www.lfmodels.com/index.php?main_page=product_info&products_id=2351&zenid=56lk5f17ssm86s4aj36k7tvfi2
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