If I were looking for something specific like this and dont want to spend the time I would look at all the characters for sale around the 5-6 mark, clicking on the eveskillboard links and then looking at the “standings” tab keeping an eye out for anyone with lvl 5 standings with any of the locator agent corps.
If you’re lucky you might find a character that’s a PI, trading or mining alt that also has lvl 5 standings with one of them. They might not even think that the extra standings makes their character worth more to someone like you. On the other hand, maybe even be willing to pay closer to 10-15b for a good alt.
Or if you’ve got the money for it, get a 80-100bil character off the market, that fits the standing requirement, that you can extract for skill injectors and get the character for “free”. maybe even make a profit if you’re lucky.