I can stand by Monte with the same promise- you will absolutely probably have a great time and witness some fantastic competition. They released their first modern GT car last year with the McLaren F1 and had that as the ride for the 24h. This is the "details thread" on SCI from that 24h, in Nov 2014, and this is the "after" thread.
THIS is the thread for the recent Scaleauto 12h. The "after" coverage (not much currently though) begins on Page 6 of the thread.
The event for this November will be BRM cars, but this time their classics line: 917 and 512's, head to head for 24h. The 917 has been out for a while but the 512 was just released last month. We should have plenty of time to shake both of them down and prep one. There will likely be events during the week leading up to the 24 over the weekend, so keep your calendar clear Nov 10-15.
Great people, great cars, great track, great facilities, fantastic event... get in on it- become part of the Oregon Donors!
Chris