I think you made a wise decision. I still haven't participated yet and may not. Like You I been looking at the math to try and decide my best course of action.

I was thinking about the $200 level so I would get the level 2 Gold Foil and the 10% booster pack bonus. With the plan of immediately selling the Gold Foil as soon as I get it.

I suspect getting $100 for the GF Chained Golem is a conservative number. The value may drop or rise as the days/weeks go on but for the first few hours/days getting $100+ for the Gold Foil should be a reasonable expectation.

That would leave me paying $100 for 110 boosters and a max chained golem + the bonus potions.

I also have the thought that these UNTAMED packs will be dirt cheap on Steem-Engine. Currently they are already about $1.50. No doubt that price will drop a decent amount once everyone is flooded with UNTAMED packs from the Kickstarter/Fundition.

So 110 boosters x $1.50 (at best) = $165
. +
$16.50 for the max golem = $181

$81 profit without including the value of potions if one were to sell the included gold foil for $100.

There's also the option of scooping up the >$1.50 boosters that are likely to hit Steem-Engine once the UNTAMED packs are able to be opened/ Hoarding them and reselling later.