Im thinking including 52 might be too steep, zol was selling for 99 keys here:

https://bot.tf/stats/listings/4O9WLWXV

https://backpack.tf/profiles/76561198337734785#!/compare/1593388800/1593475200

Given how zol trades, its unlikely he dumped to dotaexo, so probably someone bought for 99 and dumped to the site. If that's the case we would have sales at 52/77/99 and 77 flat would be best. Either way, 52 would sell instantly to gamblers so I doubt it was up for long @ $100. 77 flat should be better.