Dude, you do you. No one's going to be able to answer this question better than you can yourself. If you want to be patient then it might serve you later to wait now... but, at the same time, that's counteracted by the fact that you'd be getting less outta what you got now... and there's no guaranteed later that you won't want to replace whatever you invested in then!
So you gotta just use your best guess and decide what you're playing for. If you're in the long-haul and a FTP type though? I think there's a decent chance it's worth saving some back and not investing so much in that lineup.
But... those chars are all quite good! I'd pull the trigger. Really up to you and dependent on how highly you value the tradeoffs/possible tradeoffs though.