If you want to know how to synthesize drugs start with organic chemistry books for beginners,learn than learn more and you will know everything you need,read bbgate,talk with more experienced chemists,read other forums and reddit,maybe rhodium archive on erowid but be careful with these...
Instead of ether you can do dual solvent recrystalization with ipa and acetone,you can also do it only in acetone if you want,it doesent have to by anhydrous
Not if you will keep your temperature reasonable,and as I say don't do high concentration because you will perhaps explode
Edit:
Check this link https://topologicoceans.wordpress.com/2013/01/30/lablulz-densitometry-of-hydrogen-purr-oxide/
You can form oxolate salt of amines but I guess its a little bit tricky,it might be good alternative to hcl,but if you have any left oxalate acid in your product,its toxic
The amine freebase was dissolved in 5x its volume of dry IPA, and added dropwise to 1eq of anhydrous oxalic acid dissolved...
yeah probably for most persons,but I have a friend who isnt really into computers and stuff and i configure for them everything like tails os etc,cant imagine them configuring whonix