Hey! Welcome to OpSB
I'll try to explain as best as I can. First of all, are you familiar with McMMO? If not, check it out here and get the basic idea of it:
http://mcmmo.wikia.com/wiki/McMMO_Wiki
All of the above except the pickaxe is based on the McMMO system. Here's a basic summary of McMMO:
And for extra luck:
So, lets start with the pickaxe. You get an Efficiency 8 pick by earning tokens. Tokens look like magma cream, but you can see the difference by hovering over it in your inventory. To get tokens, you can get them in crates, and by earning XP and trading in your XP for tokens. 1 token = 10XP levels. Then all you do is right click whilst holding the magma cream to redeem the tokens. Then you go to /warp tokens and find the [Enchant] Efficiency sign, and just right click it whilst holding your pick. Efficiency enchantments cost between 10 and 125 tokens.
Salvage Anvils
I'm not 100% with this, so I'll use online sources.
I apologise for the lengthy post, I'm not 100% familiar with it myself, and if anyone can put this in simpler terms please do
Regards,
Geiasxou