I honestly don't know where to continue once I have the basic ores dug up. If anyone could give some pointers of what machines you guys start with (I want to use EnderIO, but it doesn't have the Pulverizer from Thermal Expansion, and the Macerator from IC2 won't work since it uses AU instead of RF), it would help greatly.
I can't answer the rest of your post but I can give you a bit of a hint with Ender IO. The Pulverizer equivalent in Ender IO is called the SAG Mill. It will crush your ore to double it and potentially give you a bit of a bonus if you can keep it's processing slot filled with flint (better than nothing) or dark steel balls (better than flint). You can then feed that into the Ender IO alloy smelter to make the dust into pretty ingots.
Ender IO generators (starting with the stirling generator) are a good first place to start and they get better once you put in double layer or octadic capacitors. Once you get further along with your materials, it has a combustion generator and solar panels that you can use to further increase your power generation, and it has a multiblock capacitor bank that you can use to store it.
Your first ore doubling mechanic that you will likely end up using will be your Tinker's Construct smeltery though since you'll want the tools that you can create with that.