$49.95 for the bolt kit GBody sells (black oxide hex flange head and SS? for #3)
$27.95 for the bolt kit Kirban sells (part #6974) (cad plated hex flange head)
OR
visit your local supply house and get what you need for under $20
There are choices out there. Just be aware that you have some and choose accordingly if you're getting the absent #3 & #4 lower bushings to install as well.