So, in the interest of making players happy, I suggest these two tables:
Here I am arguing the principle that the difference between finding a good crew member (or hireling) and a bad crew member is a matter of choice. Taking a longer period of time to look over prospects, being more diligent in finding people and letting the word spread that there are serious ship-owners looking for good people helps spread the word around, enabling the ship owners a greater variety of possible crew members - and consequently, a higher quality of crew and individuals. It is recommended that the player roll on the bottom table to find the overall crew's quality . . . and then, as necessary, individual members of the crew can be determined from how long it took to find them.
I am somewhat reticent about there being any chance of finding a hireling with +5 in all personality traits, even with a year of searching. There's only 1 such person in 46,656. In my world of 237 million in population, that's only 5,019 persons. How many of those are ship captains? Still, we are talking about 36 continuous years of searching in order to ensure odds of finding such an individual and this is a fantasy world - some concessions can be made for party luck and unusual benefit. As such, even though it defies logic, I'm letting it stand.
I feel the need to point out that individuals of the -5 shell are not the same as the +5 shell. The shells are arranged (see the previous post) so that a person with traits of +3, +4 and -5 would be in the -5 shell because the minimum trait they possess is -5, and not because all their traits are at -5.
This settles my needs for crew acquisition for the present. The players have a means of obtaining a particular crew, they have a clear idea of what the individuals might be like, they know what a crew of various levels can accomplish and we have the necessary details for managing the rules I've made for naval warfare so far. I can now move onto other things.