Should be lots of fun, although personally I would lower the 4AcO to maybe 10mg. You can always kick it up if necessary.
My regular dose MDMA is 130mg, my regular dose 4HOMET is 20-25mg.
I tried 130mg MDMA with 9mg 4HOMET and the comeup was pretty intense. Had to lie down and close my eyes. Nothing I wouldn't repeat but I was glad I was in my own home. Trip itself was awesome. Clear euphoria and nice visuals while watching fireworks.
edit: I know 4HOMET and 4AcODMT are not the same but they are both 4-xx tryptamines, and especially at low doses (5-15mg) are "alike". Obviously also different but you catch my drift.