Converting Throne of Bloodstone, and keeping it at 100th level, that's a recipe for disaster.
Note that the module itself even says "for 18th to 100th level PC's". Try and keep that level range in a 3e game! It was meant to be a high level, high power module, but 100th level nowadays is madness (note that in 2e, the limit of mortal progression was 30th level).
The power scale between 1e and 3e regarding above 20th level is so different that this is trouble brewing. With 1e, all you essentially got above 20th level was just more HP per level, so a party of 100th level 3e PC could defeat entire pantheons and conquer worlds, while a 1e party of 100th level PC's was not that much stronger than 20th or 25th level, except for being able to take more hits.
As for how much gold, do the words "El Dorado" ring a bell?