I have never had a male Pokie live past a year. But I have only had a handful so I am sure there might be a few that have gone longer then that.
And how you tell they are mature is they go through a radical transformation and their palps change, in my picture below you can see I circled the area of the MM you should look at. And you can mate them when they have had 3 or so weeks to eat and harden up and make a sperm web.
my P. Regalis is about 5 inches legspan and has his palpal emboli, is that breedng age? If he doesn't much life left in him, I'd like to see him go out on a breeding exchange before he goes out. I've had him a little while now, and he's constructed one spermweb since I've gotten him.