Wales coach Rob Page was delighted with his players after their Euros playoff win against Finland.
Wales beat Finland 4-1 in Thursday's semi-final to set up the Poland tie.
David Brooks, Neco Williams, Brennan Johnson and Daniel James struck for Wales to set up a final playoff against Poland.
Page said: "We are in a healthy position because we've got everybody playing.
"The gap in the World Cup play-offs [between the Austria semi-final in March and Ukraine final in June] suited us because we had senior players who weren't playing club football, in Aaron [Ramsey], in Gareth [Bale].
"That gap helped us. If it had been four or five days later, we might have struggled a bit.
"Now we're in a different position because we've got a younger squad, a fitter squad, we've got players who are playing regularly."
He also stated: "We got off to the best possible start. We had to address a couple of things at half-time and were better in the second half.
"It could have been five or six, but the message is that this is half-time.
"We've now got a massive effort to go on Tuesday and we can't wait.
"Poland will be a tough game and we respect what they're all about.
"However, we know if we bring our A-game like we did against Croatia [who Wales beat 2-1 last October] and tonight, the result will take care of itself.
"We've been there and done it, we know what we have to do, it doesn't faze us. We've had a taste of major tournaments and we quite like it."