I bought my FXD used and much of what was done was already on it. You can do most of the same things to a lowrider as they are similar. First off, mine has the chrome outer primary, derby and timing covers, tappet block covers, transmission/engine transition cover, regulator cover. This really set off the polished engine. On the FXDX you have the black like the lowrider, the chrome will really set it off in a nice way if that is your taste. My FXD has the HD Concho Bags (hard mounted), they look good, but I would say shop around and look at what is available aftermarket, you might like the Boss bags, or Saddleman better. As for the seat, I have seen the Mustang tourer, and also the Mustang solo with the wide pillion. Both look like probabley the most comfortable you are gonna buy for the wife and yourself without sacrificing appearance. I have the optional HD tourer with the wider rear section. It rides ok, but I want to upgrade to the studded and skirted mustang with the wide pad, both for me and my wife. I added a HD compact detachable windshield I bought on e-bay like new for 2 bills. It helps a lot without sacrificing looks, but if you are into really serioud touring I would buy the wider touring windshield in a detachable. Most of my hi-way runs are in the 100 to 300 mile range so I chose the smaller shield. You have bought a scoot with lots of potential any way you choose to go. You can add the screaming eagle stage I and really wake that bad boy up without spending a king's ransom to do it. My FXD had the SE breather kit, exhausts, 6200 coil pack, and a 42MM flatside Mikuni on it and it is plenty hot for my liking, and dependable. Lot's of luck with the new scoot and keep the rubber side down!