Yeah I spoke to a friend of mine that does professional cosplay and gave me some good tips on getting the boots red with either using the white or black. I am hoping to do the qhite boots they seem to be a better way to start.
There are two types of paint that are very great for getting the colors you want for your boots. The first time is a flexible brush-on acrylic specifically made for leather-type fabrics called "Angelus." It can only be bought online but you can mix them to perfectly match the color you want. The other type of paint I prefer is a spray-on shoe painted called "Meltonian." Meltonian is sold at Dr. Shoe Repair at the University Mall and is also sold online. If you are going the Meltonian route, I recommend that you first strip the protective layer of the boot by rubbing it all over with an acetone cotton ball. To get a nice shiny finish, I recommend polishing it all off with Angelus High-Gloss, though you may not need it so just get it at your discretion.
And I would start with black if you are doing Angelus since it is more obvious what parts need more coats. Do white if you are going the Melatonian route.
That was the advice sorry its so long.