I crunched the numbers for kits available in the USA, and then created options for itemized builds with all the parts linked. Trying to save someone money and time spent searching and calculating to find their best cost. All parts and cost info info for a 5f1 build is out on my blog. https://veryjerky.wordpress.com/2016/04/11/diy-5f1-champ-style-amplifier-cost-breakdown/