I'm not trying to turn this into a FS post, but I usually do valve covers for 50+ exchange or 75 while you wait/dropoff (+your materials). I'm trying to amass some cores to have some on hand, but it is difficult with the SR20 stuff. Even DOHC Honda covers are hard to come by. I don't think it's unreasonable unless you haven't seen any of my covers in person.
I wish I had space for a spare oven, I'd love to get ultra creative with powder and anodized stuff. Somehow, I don't think that anyone I know would enjoy the aftertaste of powdercoat in their next 5 home cooked meals.
If any of you want some of my work on your cover, let me know. I just like doing it over anything else.