I recommend you give it a long try before you buy as it isn't for everyone.
Some don't like the uncomfortableness of the headsets especially the vive (standard)
Some get serious motion sickness
Some don't like the image quality.
Some just don't like it.
So it being an extremely expensive luxury definitely try before buy if you can.
Second this ^^ CMDR Woland92, you anywhere near Sheffield UK? I'd happily let you pop over to try, maybe others would too if you let us know roughly where you are.
Regarding kit, a laptop has the huge downside of non-upgradability, but I don't see why it wouldn't work if it had the oomph.
As for the rest:
Processor - widely recommended to have at least 6 physical cores. Personal experience, I run a OC'd Ryzen 5 1600 (not even the X), which is effectively a low end part, ~£140 with a cooler, and it is NOT a bottleneck with a 1080ti. A higher end processor might give you a few more FPS, your call.
(I upgraded from an Intel 4 core I5 3570 to the 1600 using the same 1080ti, the performance improvement was huge)
Memory - fast, low latency RAM is particularly important for Ryzen Gen 1, but worth spending on this regardless.
SSD - just use
Graphics - So, I have actually run a Lenovo Explorer with a 970. It worked, was amazing but the experience might wear thin as it's obviously subpar. A 970 would work better with Rift CV1 or original Vive (lower resolution/pixels to push) but I'd definitely aim as high as you can graphics card wise.
Finally the most important, Headset choice.
Unlike others I think the Windows Mixed Reality headset are an excellent choice. I have 2, a Lenovo Explorer and a Samsung Odyssey+, I actually prefer using the Lenovo for Elite as the text is sharper. See my thread here which talks about them in a bit more detail:
https://forums.frontier.co.uk/showthread.php/462699-Windows-Mixed-Reality-VR-info-installation-and-troubleshooting
The crux is that with the WMR headsets you get the same resolution as a Vive Pro, albeit with an LCD screen instead of OLED (the blacks are black enough on LCD IMHO), but for a substantially lower price. The Lenovo Explorer can be found for ~£200 just now, has been as low as £150 in the past, and with inside out tracking (you don't need base stations) for 6 DoF it really is as close to plug and play as you can get.
As for the Lenovo Explorer itself, it's a good screen, very light and for me can be made extremely comfortable on the head and reviews regarded it as the best of the Lenovo/Acer/HP/Dell headsets.
Build quality of the Lenovo/Acer/HP/Dell is lower than the Samsung or Vive/Rift, but as long as you're careful I don't see why this is an issue, both of mine work well.
PS. ED in VR is incredible, properly scrape jaw off the floor incredible.