I highly recommend the Hyperspark distributor. Using it will free you up from the constraints of the mechanical advance curve. You can have the engine idle at 25 degrees of timing with a short ramp to 35 at WOT and then add another 10 for freeway cruising if that is what you want. Only takes a couple of key strokes to set up rather than spending a day on the distributor machine.

You can either use the plastic cap trick for install or just crank the engine over to 30 degrees BTDC and then install the distributor with the rotor pointed towards #1 tower. That should get you close enough to fire the engine but you'll need to immediately put a timing light on it. You can set the static timing with the handheld to check with the timing light. Just freeze the timing at 20 or 30 degrees (wherever you have a good mark on the damper) and then check with the timing light. Once you have the actual timing matching what the Sniper says then you can unfreeze the timing and go hammer on it.