That American Parts coin is interesting - these promotional pieces companies gave out back then have become collectibles. Premium over melt is higher because they were limited runs.
On timing, we passed $50 but the gold/silver ratio is still sitting above 80. Historically when this ratio goes above 70, mean reversion tends to happen. No guarantees though.
Those 1g bars are good for starting out, but the spread is higher. If you’re serious about stacking, might be worth looking at 10oz or higher.​​​​​​​​​​​​​​​​