This is the kind of question a publisher is always happy to get, so first off — thanks!
The first thing to remember is that other than the first Alexander vs. Persia sets, our “flexibility guarantee” means that you can change any single box for a fantasy faction. Basically, you can swap between “things” where a “thing” is both decks for a fantasy faction or one of the larger two-deck boxes (historical set or the Dark Elves set). So, for example, the Historian level gives you both sets for Alexander vs. Persia as well as both sets for the Punic Wars. You have to keep the Alexander vs Persia but you have two extra “things”. You can take the Punic War sets and swap one or both for any fantasy faction, so you could use the Historian pledge of $85 to get the basic and reinforcement sets for Alexander and then both decks for Orcs and both decks for Lizardmen. If you wanted to add a third faction then you could add $20 to your pledge.
If you want a lot of factions, then you probably want to start with the Bundle Pack. Not only is it slightly more cost-effective but it qualifies you for the free bonus faction since we hit our early funding target. (Yes, you get this bonus no matter when you pledge.) The Bundle Pack can be thought of as one Alexander vs. Persia (both sets) plus four more “things” plus one extra “thing” for the early funding bonus. So you can take both Punic War sets and three fantasy factions or just take five fantasy factions.
If you want to buy the entire product line, you’re buying four historical sets (Alexander vs. Persia and the Punic Wars, two sets each) plus nine fantasy factions. (We have ten, but since Hawks are sold out they don’t really count.) The Bundle Pack gets you all the historicals plus two fantasy factions — and you get a third as the bonus. That means that to get all the rest you would add six more fantasy factions ($120) plus Kingdoms ($10) and Terrain ($15) for a total of $265.
International shipping maxes out at $30, so international pledges would be $275.