I'd go along with what Mike has posted Josephus, but I'd like to add a footnote of my own. Look very carefully at who you are going to market your services to. Your proposed equipment for the residential market would not be up to that required for the licensed/restaurant trade. And if you were concentrating on larger offices with low profile carpet or tiles then different equipment again would serve you best. I presume that the Fibredri you talk of is a dry powder system? My own opinion is that this could be too limiting for you, and at this stage in your business development may not be the most cost effective move. Over the years I've used many Prochem products and have nothing but praise for them or their back up service. They didn't become market leaders through good luck, but through good products, good support and competitive prices and a lot of hard work. If you wanted to look at alternatives then names to look at are Ashbys, Alltec, Extracta, CFR, Cleancare International, Hydramaster and Karcher to name but a few. As well as the products, you need to consider location too. If you have a dealer in your area, it can make a world of difference should you have problems /breakdowns.
The Prochem, and the NCCA training is excellent and should give you a good working knowledge of the theory, technicalities and procedures of our industry. A must have. If the Prochem course is carpet only, I would suggest staying over and taking their upholstery course too.
Safe and happy cleaning:)
Ken