318 Timing Chain Question.

Help Please..........
I had my engine at TDC for Cyl #1 and just removed the Timing Chain and gears. Both the Markings were at 12 o'clock.
I did a Boo Boo, Huh? it should have been TDC on #6 I think?????
What should I do to fix this situation? (FYI, Engin is In the truck and it Very hard to get to the front from the Top, Bottom cannot be done because this is a customized 1946 with a 1986 318 Engine).
Option 1: Put chain back on and find a way to roll it one rev?
Option 2: When I put it together put both at 12 like the Old came off?
Option 3: ?
I have done a couple timing chains pretty recently. My understanding is dots lined up both in 12:00 position is correct for TDC on #1. Dots lined up dot to dot at 12 and 6 will have cylinder #6 at TDC.