Wine kits come in two thoughts....an equipment supply kit vs the actual wine itself. You can also get a combo of equipment with a basic wine kit for a goid price. If looking for a wine product, not the equipment, it all depends on where you live. US has a wide selection while Canada has some different and same product lines, vice versa.
If looking for a cabernet, go for midline, something in the $100 range. This will yield five or six gallons, 25 vs 30 bottles. As a beginner, I would not recommend dealing with skins, it can overwhelm some. But, be prepared for the aging of a year minimum. When you run i.to products marketed as four week, six week, etc...that is not a timeframe of readiness for consumption. The exception being the mist/twist style kits. Consider that a low end product needs just as much aging as a high end product.
And I use glass and BetterBottle type product...do not use plastic water bottles except for emergency racking. Just my two cents....I find if I have an empty carboy I fill it, so the water bottle keeps me with a wee bit more money in my pocket.