Knafs Lander 6 Handle

Replacement handle for the [Knafs Lander 6](https://www.knafs.com/collections/lander-6). Use parts from the original knife plus a M2x6 screw and nut. I moved the key ring to fit between the scales instead of through so that it can't fall in the blade path. The front bottom is a tiny bit higher to be more flush when closed. Also included is a combined part which is closer to the original handle, but can't be as easily printed flat. If your back spring is slightly wider than 2mm, you may have to sand it down or increase the height of the backspacer section.

4/24/25: Updated with minor sizing and placement changes.