Flor1, welcome to the forum.
Regarding your question, there seem to be two schools of thought on the subject of "first kits." One is to buy a moderately priced kit to try first so that if it does not turn out, you are not our a bunch of money but if it does turn out you have a mediocre wine. The other is what I call "the Devil loves a coward" scenario where one throws caution to the wind and goes for a premium kit. The thinking here is it takes the same amount of work, equipment, time and a little more money, so you might as well end up with a great wine. I am very much in favor of the latter theory. I would suggest at least a 16 liter of juice kit (e.g. Cellar Craft Showcase, RJ Spagnols Winery Series, WinExpert Selection Estate Series or Eclipse Series) and one that has a grape pack would be a plus. Because you will have some help from your mentor, the risk is low and the reward is high. Good luck.