RE: Scratch Build P51D Mustang
Ziroli plans are highly detailed and of excellent quality however, I would buy them directly from him. He does have a website and he does offer canopies, cowlings, pants, etc. which is nice if you are not incline to make your own. There are several reputable kitcutters who can provide a short kit to get you going. Ziroli has been very successful in Flying scale competitions so his designs are proven. I have been considering building his Staggerwing ddesign in the not too distant future since Top Flite doesn't offer anything but a ARF.
Mike