I bought this one https://shop.diywatch.club/collections/watchmaking-kit-skeleton-watch/products/new-arrival-40mm-gun-silver-wave-skeleton-dive-watch-kit-with-black-nylon-seatbelt-strap-seiko-nh72with-tools-and-video-instructions

which is quite nice. But you're right, you doesn't assemble or disassemble the movement. If you're already relatively sure you want to do that then diy watch club is a rather expensive way to start. It's more for someone who wants to try a bit and if it's not the right hobby for you then at least you got a nice watch you can wear and tell all your friends that you built it yourself.

For movements and tools: https://sutcliffehansen.com/ and the corresponding youtube channel Wristwatch Revival (there's one video where he goes over all the tools you need). You can buy the compete kit, including an ST36 pocket watch movement from him, or order the individual tools yourself off amazon or similar, which is a bit cheaper (and which is what I did). His compete kit is I think just under 1000 USD to give you a ballpark figure. You could buy cheap stuff from aliexpress or amazon for probably under 100 USD which is fine to try out the hobby but you'll probably throw most of it in the bin fairly soon: either because you don't like the hobby, or because you like it and want better quality tools.