1) Have your battery tested. Buell's do not like old or nearly dead batteries.
2) Insure that all your grounds and battery connections are clean and tight.
3) check fuses
4) Have a good look at your wiring, leave nothing uninspected, to insure there is no chaffing or what not causing a short.
5) I would replace all your relays. If you can pin point which is the one that's giving you issues then replace that one but since you've already mixed em all up, and they're fairly cheap, Id just put all new ones in there.
6) If the fuell pump is not priming normally you might want to look into pulling it to check the wiring for said fuel pump that lives inside your fuel tank
Go to www.buellmods.com and download a service manual for your bike. That should help you out while you try to locate the source of your issue.
Good luck