Mobile powerhouse

Hello,

I learned I can’t make a multi—GPU PC that increases raw power for cheap. I have a new idea that I WILL need help with. I am now trying to make a “counsel“ PC and/or mobile desktop PC. I travel a lot and need a PC that is very portable, powerful, and diverse. I want it to be able to play games at 60 FPS+, games being like Fortnite, Halo, Star Wars: Battlefront 2 (both EAs and the classics) with mods, and more with amazing internet (even if where I stay not having good internet, I know it‘s more on the provider than the components, I just want the capability to go all out if the place has good internet). I also want to be able to 3d model, CADD, 3d printing/slicing. Coding, school, and the basic office stuff like excel, word, etc. All this without errors, stutters, lag, crashes, freezing, just running smooth as all hell. Oh, I also tend to ”multitask also”. High RAM is a must…Any ideas on cases, motherboard, GPUs, CPUs, RAM, storage and their many companies and manufacturers?

For those who will just saw for me to get a laptop, I want to be able to upgrade everything, if not mostly everything.
Tips on how I can do this will also help.