enjoy the ride
Sufficient Life
If you need a cheeeeep mitre box, they are easy to make or the plastic ones cost under $10- you don't even need any special saw. You just take a 2x4 piece about a foot or so long, nail some pieces of wood to the edged to form an open ended trough. Then measure and saw down the cut straight across the middle and measure out 45 degree cuts across it in both directions. I have a cheapie one I made years ago and I still haul it out to use- it's easy and fits the saws I use most often. Takes all of 15 minutes to make.