There are a number of Sponsors and Advertisers on this site, some make, others might sell new and used. I certainly would consider a used bow for a first bow. Try it first some first and get a feel for how they shoot. Custom do have their advantages; pretty, fast, smooth, above average quality, possibly better resale. Downside is the wait time. You might find one in stock.
Bowyers like Robertson Stykbow (Montana), carry some bows in inventory. Plus, they offer a trial on new bows and may have some on sale.
Consider looking in a traditional shop in your area, like others, I believe it is best to try several bows. For your wife, the draw length, draw weight and bow length and how it shoots and feels may be more important than the looks.
There are a host of arrow manufacturers on this site and quality trumps quantity. It is important that you get the right length & spine for the bow. Some bows are near center-shot and can handle a stiffer arrow, a longbow may need a lighter spine. Ask some questions and both of you will be happier in the end.