Not sure but I think the power window locks part of your question was standard on all 98's so that shouldn't be a problem. The seat issue I'm not sure of but if you get a limited bcm that had the options they will most likely already be there. I have a laredo that I'm changing and I know the auto headlight function can be activated with a DRB. Don't recall seeing menus that dealt with memory seat but I haven't had time to go through all of them as I just got it.
deep from the bowels of mopar design
Links to axle rebuilds, mount replace,a/c box rebuild,ect in history section of my profile page