I would not recommend taming a high lvl. If you have the resources, by no means go ahead and get him but I found out recently that it takes an absolute butt load of Rockarrots (100 for a lvl 95) to tame him. It took a very long time and in the long run, I didn’t even get him. Not to mention, you have to have extreme focus not to let him buck you off and lose taming progress for that long of a time.
Well the Equus is a hard tame,even a t-rex is easier but you will need around 30-60 carrots so to get that you will have to plant some get a medium plant crop and in order to the seeds go to the nearest forest and keep gathering plants until you get the seeds plant the seeds with fertilizer inside the plant crops.