Completely new to Hackintosh, basic questions about compatibility and how it works

1.) What is the best out of the box PC that you can install Mojave on ?

I'm looking for something as comparable as possible to a new MacBookPro:

ex: 2.9 GHz 6-core i9, 32GB memory, as good/compatible graphics card as possible and 1-2 TB of SSD storage

NVIDIA graphics would be preferred but I have read that compatibility is an issue, it's more important to me to have a graphics card that works without much hassle

I have read some things about XPS15 laptops, are there any other laptops?

How will 4K work?

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2.) I have read that Wifi cards likely need to be replaced to be functional

What are the options here? Is this fairly straightforward?

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3.) How much really works and how stable is the system?

If I just wanted to get a Mojave install and never update, what will work and what will not work?

I think most important are Wifi, and touchpad gestures, like scrolling and zooming.

Don't care at all about messages or iCloud, but I would like an install that is basically indistinguishable from a Mac.

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4.) Is it really possible to get a fully functional MacOS install on a PC without having to do too much tinkering (e.g. just wireless card)? What are realistic expectations for functionality of a high-end laptop Hackintosh?