He'd miss Friday night and Saturday day games as long as he could figure out the travel and the team was ok with him not showing up for a 24 hour period (and it is more than actually traveling, but how to operate when traveling, like could he stay in a hotel Friday night and all day Saturday or would that cause him an issue - that is what would need to be worked out). It probably wouldn't be that hard to justify for a team if he was good enough and it isn't like many games are played on Saturday afternoons anyway (this isn't college football). The occasional missed Friday night game wouldn't be a big deal as long as he was ok playing Saturday games with 7 or 730 start times.
He says he’d walk to Friday night games and play. I think the big problem is travel, as NBA teams travel frequently on Friday and Saturday.
Well if he'll play than it really shouldn't be an issue. He just needs his travel to be completed Friday before sundown. So as long as he is fine with staying in a hotel on the Sabbath and they can find a hotel close enough to the arena, then he shouldn't have much difficulty at all.
I'm not sure it's a non-issue. The Celtics, for example, have had 5 friday-saturday back-to-backs played in different cities, as well as four other friday night-sunday afternoon games played in different cities. He'd miss a number of games for any team he played for, as well as have to travel separately (likely missing shootarounds and film sessions) for a number of other games. For a guy who's not a surefire prospect as is, that's a pretty big concession.
to the bolded above, maybe. first, we are all assuming a level of orthodox behavior when we do not know exactly the level to which he follows or practices. Some adherents of all religions are stricter that others. Maybe he can travel as long as HE does not drive the car, fly the plane, etc.
next, let us assume he turn out to be a good, not great, nba player. maybe the level of grant williams, schroeder, olynyk, alec burk, justin holiday. maybe he would ordinarily be the 2nd or 3rd player off the bench and in your 8 player rotation.
the question i would then ask is this....which would you prefer to have on your team? an good player who misses a game each week. Or, a lesser player who can show up each and every game and play at a lower level?
in the case of the latter (like dominos, Turell would push out the 15th player at the end the bench) that end of the bench player might be available for every game, but would rarely play since they are not good all.
i think the basic priority for me is to get the best players you can. even if they cannot play every game, is having them on the team better than the current 15th player on the roster player?