You can get a lowering link that will drop you 1-2" from noemtz or heavy metal designz. Both of these vendors are very good and can be found on the forum.
As far as the seat goes there are quite a few companies that can mod your seat. Most of the companies have mail in or drop off service and some (not all) will work seats with heaters. Your best bet would be to search the Cross Country / Cross Roads section of the forum for "seat" as there have been several discussions on this subject.
Congrats on the purchase, ride safe!
Retired USAF, IYAAYAS!
2008 V-Star 1100 Custom Bobber project
2011 Crimson XR with Forged Highway Bars / Hard Bags / Passenger Backrest, Ness parts including Smooth Layback Plate Frame/Mount / Rad 3 Mirror / deep cut grips / drivers floorboards /shifter peg / brake peg / passenger pegs. Witchdoctor black rack, Lloydz filter / timing wheel / VFC III, 7Jurock windshield, Drag Specialties seat.