So this now starts to make sense, $8k, not including a motor.
Most people don't add up all the details, it's a hobby so that's fine.
But you'd be hard pressed to do this swap for less than $10-12k.
Not trying to be a d*ck, but people need to go into this eyes wide open.

I've kept a detailed spreadsheet and will be lucky to keep it around $15k.