The yellow paste is indeed for strop conditioning and has no abrasives.
The Knockoff razor was a good idea, You are going to need it to learn with.
Pick up some chrome oxide powder or paste. A really cheap way to do this is with a poormans strop kit from whipped dog.
Whipped Dog Straight Razor Shaving Equipment
It comes with a strop that is cheap enough to damage when learning on, and it comes with the balsa paddle for the abrasives. If it survives till you become proficient at stropping then you paste the leather. Otherwise it's mostly disposable.
Send your best razor out to be professionally honed. There are loads of people that do that on here in the services. Also add your location as you may have a friendly straight shaving local who uses the forum and will help you with honing. If you cannot find a local or want to send the razor to a company rather than a person, Straight Razor Designs offer honing services. And the owner is world renown for his abilities. It'll give you that all important benchmark. Then you keep that razor for shaving and try get the knock-off to as near possible. I fear with only a 800/6000 and some pasted strops you will see that you need finer stones (but at least your razors are safe, and you can still shave with the pro honed one)!
If you purchased your razors new from SRD then they should already be pro honed. If you are unsure post the company you purchased them from and we will tell you what the finish will be like. (new dovo's all need honing they come with only a display edge on them unless honed).
Read and re read all the stone reviews, and if you find a local honer meet up and try their rocks. It'll help you make up your mind about stones and how they feel and work.