The buy it now option is about $10-15 cheaper than standard retail. + $10 p/h and your're back up to $100 which you should be able to get at most performance shops.
If you're buying off ebay here's one of a few Oz online shops for price guides. I"ll get a few more for you later because VPW is a rip off anyway.
Along the lines of bolts, I'd also use a quality main stud kit (ARP or Milodon) for bottom end strength.
Mate, if you're doing another rebuild, I'd be going a stroker kit! A 408 cube monster would get your coupe swingin'
I prefer to use the "ebay motors" in the US for buying parts like bolts etc. Here's some for AU$47 + shipping. It all adds up when you're buying a few things. Some companies don't ship international but many others do.......just email them. There's so much cleveland stuff turning over each day, its great