Hi, welcome here.
The Columbia cutlery one looks good but will not be shave ready.
Take the whipped dog razor for reference.
Train yourself on the gold dollar, you should be able to get a satisfying edge at least in some part of the blade in less than a week and that will help you to understand how it works.
Do yourself a favour and buy a good 8k norton waterstone, honing a razor is too difficult to start with a hard and unknown welsh slate.