you could extract the thc from the plant material into the alcohol first. then completely evaporate all the alcohol off, you will be left with a gooey substance. take that gooey substance and add it to your oil. the best way to get the best saturation is to find an oil that the thc dissolves easily in, there are more types of oils than butter. and then as much thc as possible will dissolve in whatever amount of oil you want it to. and there may be some left over thc that would need to be dissolved in more oil too.
when you learn to walk on the planes of existence, you can learn to run on the planet of earth