RE: Edge 540
It is so difficult for us to predict what you can and can not handle. So, advice wise, it's always prudent of us to advise on the side of caution.
However, there is always the exception to the rule. I once had a student who soloed his first day (He never used a simulator) and his second plane was an Extra 300 - which he flew effortlessly.
So, only you can decide.
If you feel confident in your skills, go for it. But just to play it safe, have someone buddy box you for the first flight and then you can decide from there.