You can get it mounted and balanced for $20 at Grif's Cycle Shop in Lewisville, but you'll still have to put it back on the bike. It's not that difficult, provided that you've got the tools and a good jack. Here's one post that explains the process succinctly (also take a look at
http://bareasschoppers.com/rearwheel - and keep in mind it's the same for 1300 and 1800).
1300 Rear wheel removal
1. Place bike on jack with the rear tire 12" off the ground.
2. Remove the caliper stop bolt located approx. 6" in front of the axle nut. (black powered coated bolt through the swing arm)
3. Remove the brake hose clamp bolt
4. Remove the rear axle nut. (27mm socket)
5. Tie the caliper up so it will not hang by the hose when the tire is removed
6. Place another jack under the tire for support while removing the axle.
7. Tap the axle with a rubber mallet to get it moving.
8. Grab the axle from the final drive side and pull it out. (On the "R" model you need to remove the two bolts on the muffler support so you can move the pipes so the wheel will clear the seal on the gear case.)
9. Move the jack supporting the tire to the right to disengage from final drive.
10. Carefully lower the tire making sure everything is clear. When reinstalling the tire make sure to pack the final drive gear very well with Molly Paste (not regular grease and not moly grease!!). Reverse the procedure and torque the axle nut to 81 ftlbs (refer to your owner's manual torque specs).