Should be fine, if you planned to replace the sata hdd

no cable needed. simply take off your hdd, replace with your ssd, install new windows on the ssd, voila

if you planned to keep the hdd, you need to buy hdd caddy (just google, shopee, lazada, lelong should have plenty). Put ssd inside caddy and replace the dvd drive

But you will not have the dvd drive though (as the caddy will be put at dvd drive slot)

no idea as I always do it myself. Should be easy enough to learn off youtube(you only need screwdriver). however if you're not confident, always ask a shop to do it.