Thanks, I'm looking at Shop4Seats but they don't know if their seats will fit the bases in the 2018 sprinter. Their bases don't go past 2015. I'm going to send them some pictures to see what they think. We are looking at the Longhorn and Knight AM high backs. Are you familiar with either and have you installed any of their seats.
I will check out Flexsteel as we've had their seats in other motorhomes.