Don’t let the guys saying you can’t do it st home be your anchor in life. You can do anything you set your mind to if you want it bad enough. I passed up a mill 5 years ago and still kick myself in the butt twice a month but I’m now 64 and my son has little interest in doing heads. Do you need a mill? No not to do valve jobs but it would have opened the door to doing seats exactly how I wanted them and do some testing. I sold a seat cutter (pilots, stones, and tool) and a valve grinder and cabinet for 250.00 to make more room in my shop. I bought it for 200.00 for a spare years ago. Deals are out there everyday