TL;DR - between 1232 to 1688 battle droids
Thanks to Wookiepedia, and a bit of math, we can calculate how many droids a C-9979 landing craft, from the Trade Federation, could carry. For the purposes of this answer, I will be talking about classic B1 battle droids.
Wookiepedia quotes that a Landing craft can carry 11 Multi-Troop Transports (the same number in ...
15 guided missiles x 2
Engineering MODEL IG-227 Hailfire-class droid tank
The IG-227 Hailfire-class droid tank is easily
identified by its treaded, hoop-like drive
wheels. The InterGalactic Banking Clan
commissioned the construction of the hailfire
prior to the Clone Wars, and the units saw
their first combat against Republic troops
Thr bounty hunter plot was a way for Dooku to betray Sidious, as is the way of the Sith. It is obvious in the episodes that Dooku knows he is Kenobi and that’s why Dooku is gone when the plan fails: so Sidious doesn’t know. Kenobi was who Dooku wanted as an apprentice, so he would not out and kill Kenobi.