My dog damaged this door jamb while I was out of town (separation anxiety). I am finally getting around to fixing it. I thought the middle part of the jamb (door stop?) was separate but the jamb is one piece. As you can see it is not. Where can I get a jamb? Didn't see them on Home Depot site. Can I just replace the lower half or the strike side or do I need to replace the whole frame? Any addition advice or video links to help.

Hi all, after finding out that my door's threshold was hand made and therefore its nearly impossible to find a replacement I am going to be making a replacement myself. I plan on buying pressure treated piece of wood and making it myself. Final dimmension I need are 6ft x 6 inches and 1/2inch thickness. With 1/2 inch tapers on either side. This is the picture of the piece I am trying to recreate - [URL]https://imgur.com/a/As0bPas[/URL] [ATTACH]93268[/ATTACH] [ATTACH]93269[/ATTACH] I envision buying a 72x6x1 (or 72x6x3/4) piece of wood and then shaping it. I got a circular hand saw. Im thinking I need a hand plane, and a belt sander (or can I get away with hand sanding?) My two main concerns are: 1) Tapering the edges to about 45 degrees 1/2 inch on each side. 2) Making it thinner, current one is 1/2 inch but maybe over 40 years and because its rotting through it actually was 3/4 originally? Is hand plane best tool for both of these jobs? Or am I heading totally into wrong direction? While Ive done quite a bit of wood working over the years, I have never used a hand plane before so I am not sure what its capable of. Please school me :) Thanks!