Saddle tanks; changing out?

[Canada20]

Hey all. I know there used to be plenty of really good threads about changing saddle tanks and I searched but I can't seem to find them; where'd they go?

I'm going to be changing out the tanks on my '81 in the next couple of days. The driver's side tank is already out but it was a buddy of mine who removed it so I'm not sure which line goes where now that it's my turn to hook a replacement up. Also, we cut the lines to get the tank out, is that going to cause any headaches?

Any tips/advice are appreciated (including "go search!" )

Greg