Ordering a custom instrument requires some knowledge of the expected results. Further, there's a significant risk that comes with (expensive) trial and error that the first one, or the first several, won't meet expectations.
Given this, it is foolish for someone who has not played the instrument in a long time to jump into the custom world. How can he possibly know what he's looking for?
It would make more sense to get a stock Fender bass and play it for a while. This will start building the foundation of knowledge.