I think it's definately worth a try, especially if you have some hair left on your upper head.
But really, do no expect results equal to the revivogen timeframe on their hp. Be consistend, give it at least 7-9 months to see results. Users like Geox or downthedrain sticked to Revivogen and it was worth it.
I like the "Cold burn" as you describe it. I don't think that the shampoo is really necessary. I'd go with Nizoral Shampoo 3-4 times a week and the rest of the days normal shampoos as ever.