Hi altainta, you are a saint to help your friend save his life...
I've used the oil to get rid of my prostate cancer. From planting the seed or clone, through harvest and cure, and oil making, I've had the luck (like you) of having mentors here on this site to show me how to save my own life.
I've never experienced a greater sense of accomplishment, self pride, and humility.
Sorry, I do get wordy.
ALL of your questions, and many more, are answered in the two links below. I'll answer some here:
1. Yes. Sorry, you must read the first link below for details. No bags.
2. Alcohol will boil off at around 70 deg F and will be hard to raise above that because the evaporation process is a cooling process.
3. & 8. The closer to pure grain alcohol (100% or 200 proof) the better. The water in 45 Proof or % will pull out more chlorophyl and waxes but also most the cannabinoids. You'll have less pure oil, but more bulk and still effective as a medication. You'll have to use more, is all.
4. Yes, the temp must be between 240 and 250 deg F until all surface movement ceases. Watch that the alcohol has mostly boiled off before hand or you'll blow the place up.
5. No, you'd leave too many cannabinoids on the inside of the grinder.
6. & 7. Freeze both solvent and bud 24 hours before starting. Combine and crush the buds during a 4 minute wash.
This is not meant to replace your reading the two links below in my signature!
Read the first few pages of these links
before starting the process!
I know you are in a hurry, but this is a marathon, not a sprint.
There's too much time and money involved to make a mistake.
Good luck and read, read, read, read, read...