newby to cleansing program

Hello,
I've been suffering allergies and indigestions for many years. And now I found this great site that may be an answer to my problems - detox ! I have been searching around and finally decide that I should do the 8-day ultimate fast to start out (well if anyone know better program, pls let me know). However, I have some questions, I'd appreciate it your help with them:

1. On the program, it mentions about 'whole body and colon program'tablets that need to be taken during the regimen. Is there other similar stuff out there that are cheaper with the same effectiveness? what about products from Renew Life, the manufacturer of Paragone (effective parasite killer I read from this site).

2. I know that BCN (Beachwood canyon) website sell the kit for the whole program and I wonder if this kit is expensive or if I buy out there individually would be less?

I am nervous yet excited for the cure !

thanks in advance !