"To test and experiment," yes. 60GB is more than enough to do that and quite a bit of file space. 120GB will go further if used much and run faster with more files stored on it. Either way, you'll be glad that you tried it.
When I built my current computer, I got a 240GB SSD for my OS and software (my bin, boot, dev, etc, lib, mnt, opt, run, srv, sys, usr, var directories...my home directory is on a spinning disk because of the size). I've got a lot of software installed on it on top of the operating system and I'm not anywhere close to 14GB. And as I say, that's with a whole lot of apps installed on my system.
Notice what I wrote in comment #56, right after your reply. I had failed to notice that part about “SDD.”
https://www.freerepublic.com/focus/chat/3612936/posts?page=56#56