It's not completely without precedent to speak that way. "Build" and "make" are different words, but it is common to say "we built our own house" to mean that y

It's not completely without precedent to speak that way. "Build" and "make" are different words, but it is common to say "we built our own house" to mean that you had one custom built for you. Also, you can go on almost any car manufacturer's web site and they let you "build" a car, which means selection options and packages to see what it costs and start the process of ordering.