Sorry to say that your "more advanced plane" is very likely to be a big waste of money.

Yes you are WAAAY ahead of the game because you fly helis, there is little doubt of that.

But it's still not the same as flying a plane nor is a plane like a heli.

Yes the plane is simpler and will indeed be very easy for you to pick up and learn.

You will advance quite quickly because of your experience... however there are many things you still need to pick up.

Don't get ahead of yourself.

See if your club has a training program, and if there they have club trainers you can use.

You can take one or two sessions using a club plane, and be ready for a low winged plane given your experience level... but you will still not be ready for say a warbird.

Your first plane can indeed be someone else's third plane this way however.

But for your first orientation flights you can use a club trainer. You will probably not need or want the trainers beyond that.