Just caved and pre-ordered from Drop the High Profile Alt in black with MX Browns; expensive but i need a hobby and this looks like a great starting point.
MechanicalKeyboard-Era, what do i need now to properly mod this? Never done it before but screw it, seems like fun!
Where do i buy switches and keycaps and what tools etc?
Depends on how deep down the rabbit hole you want to go. All keyboards are going to feature the same basic components. That includes a case, PCB, plate (optional in some builds), switches, stabilizers, and keycaps. Other popular tools would be things like a keycap puller, switch puller, miniature screwdriver set, and possibly a switch opener.
Typically people who start getting interested in tinkering with their keyboards will tune their switches and stabilizers by lubricating them. Other popular mods can include things like foam to deaden the sound your space bar makes, or reduce the hollow "ping" or echo you can get with aluminum cases.
If you're ordering within the US you can order from shops like
NovelKeys,
1UP Keyboards, or even Drop for parts like switches, stabilizers, etc. If you don't mind shipping from China
KBDFans is another big one. Keycaps will depend on if you want an in stock item or if you're willing to wait for a group buy, and there are a plethora of different vendors to order from. If you are interested in group buys, it's a good idea to lurk something like
MechGroupBuys to see if anything might be coming up on the horizon that you want to go for (or to regret missing out on).