If it's your 1st rodeo I can highly recommend a good read through the build instructions for the StewMac range of kits, you'll get a good view of what's required for a build, safety, step by step guide and trouble shooting too, you don't have to use the same parts/designs etc. You have 2 x ECC83 pre amp and 2 x EL84 power valves and diode rectification, the power transformer might be able to power another pre amp valve but this will be a limiting factor.The EL84 can be thought of as the 9 pin/noval socket version of the octal 6v6. Below is a link to the 66 deluxe reverb one they offer, it uses 6v6 power valves and 12ax7 preamp valves. Skip the reverb parts. You can use your EL84s, basically the 9 pin/noval socket version of the octal 6v6. https://www.stewmac.com/freeinfo/i-10737/i-10737.pdf Here's the PR one too https://www.stewmac.com/freeinfo/i-10734/i-10734-F6-screen.pdf Doug.