1) $129 Ryobi from Home Depot is not the greatest saw but it will cut 2 ½ oak no problem.
2) Template and router
3) Jigsaw
4) Hand saw and rasp
You will lose some strength cutting back legs from a solid piece, but you’ll still be fine given the angle and the application. You could make a lap-like joint there if you don’t mind the look. It will be easy if you laminate them from 3 layers ulternating the overlap.
If you invest in finger joint bit (they are pricy, but can be found at $50-60), you could make this joint but at an angle:
These are commonly found on chairs and such in situations much like yours (slight angle) and are very strong (solves the bansaw problem also).
