Ingredients I have are:
a crossmax ST front wheel.
a 2.35 maxxis high roller.
1 pint of stans tyre sealant.
a friends compressor.

any tips?
I don't have on me a presta innertube either.
How can I get it to seat? is it easy with a compressor?

If it's a new tyre it can be beneficial to fit it with a tube first, pump it up and leave it overnight.

Before you try and seat the tyre cover the bead and sidewall in soapy water, this should help it seat. As you've got an air compressor I doubt it will be an issue in getting it to seat though but worth trying if you have problems.

its a fairly well used tyre. I tried like mental with my topeak joe blow track pump but it was going nowhere.