Best thing I can tell you is you know how to ride not learn about your bike and read the owners book. You'll find you check the oil with the bike straight up and down and it only takes 4 1/2 quarts.
If you do a search here you'll find out that every one has a different point of view when it comes to what kind of oil to use.
For $1500 dollars you can have a 100 horse motor and when you get it broke in you can smoke your h-d Buddy's.
I have owned thirty some h-d's and live my vision. Yes I wish it had some features that they had but o-well.
Vic is outrageous on part prices. There are some good after market shops that have a lot of nice parts you might like.
Please add your state and model of bike you have. Click user CP @ top of page and then far left click edit signature. Thanks