I have a folder on my hard drive C:\AHBackup.
I download everything AH to it. I populate it with all of my research, gunsight research, gunsights and other's I have downloaded. I backup game settings folders to it so I can uninstall AH for reinstalls and copy those folders back.
I used to burn that folder to DVD's but, now I copy it off to a USB memory stick. They are painfully cheap now.
Part of the bond which holds our external community together is the sharing of content. Making the effort to reach out in these forums and receiving back what you are looking for and then some. This game does not afford you the ability to acquire "everything" alone as a hermit visa your credit card and hosted fee content like WT. Aces High can be played as a hermit. But, immersing yourself into the fray, slings, and arrows of the AH experience is what really holds us together.
WT targets millennials who have grown up isolated, replacing personal contact with the internet of illusion. AH does not operate that way. Reach out and you will be answered.