What Pierre said... we do most, 99.9%, in house, but we have very experienced people. Our artist only does art, no double duty for her. (though she had no problem helping in the shop if asked, but that's like once a year). If you are not an artist, they you are wasting very valuable time doing it yourself. That's not to say you can't learn to do things yourself, but you'll make money while letting someone else help, then study what they do so you aren't always reliant on the outside source...
Steve