The airplane kit is laser cut with CAD plans. The airplane is Profile Scale 7/16” = 1’-0”. It has a 22” wingspan and 93 square inches of wing area. It will accommodate a Radial mount or a Beam mount engine. Here is a Mauler for your BabeBee, Golden Bee, Black Widow, Medallion, or TD. The kits sell for $60.00 plus shipping for 2 pounds from Zip 60449. A full size .pdf file of the plans is $5.00 . The price has gone up, the kits cost way more than estimated.