Arriving on BA in J at 16:35 with checked bags, and looking to connect to a separate ticket on TK to either NAV or ASR. ASR flight is at 18:15 while the NAV flight is at 18:55.
Are either of these doable? If we do ASR, I would do J so theoretically shorter check in lines, etc.

Never been to IST. Once we exit immigration/customs, is it close by to TK Domestic departures?

Thanks