Just get a MacBook Pro.
I don’t get the stubbornness that makes you choose an inferior tool. It’s a piece of equipment you need to do your job, just get the best equipment you can. Why would you sabotage yourself by using shitty tools?
If you’re a professional developer you really only need one main piece of equipment to do your job and it’s not even a lot of money to begin with. Compare this to many other trades. For example: a nephew of mine installs A/V equipment, basically a glorified electrician. He drives a €25k van with about €15k worth of tools and supplies in the back. I bet his hourly rate is less than yours.
Drop €4-5k on a nice loaded MacBook Pro. That’s, what ? One week of billable hours?