Newbie Best CNC for electric guitar prototyping under $6k

Hello,

parameters are:
1. cost for complete set-up = $6k or less
2. 2' x 3' envelope or larger
3. at least 3" z axis
4. fastest within price range
5. ease of use/ quick learning curve for newbie ; ) .. I think this rules out Chinese machines and kits???

I've been looking at zenbott, Fireball, Stinger, Viper, Romaxx, etc.. any and all advice, pros and cons appreciated!

Thanks!
Flotrain
Redondo Beach, CA