RE: WWI Bipe for a .70 4-Stroke?
Generally, the VK kits are well designed and fly well. They are definitely a builders kit, light on instructions (most instruction are on the plans). If you enjoy a challenge, and an authentic looking result, I highly recommend them. Check out the construction of [link=http://scalebuilder.org/dr1.html]my DR1[/link] for an idea of construction.
I understand the Flair is less of a challenge, both are wonderful flyers.