Think my best health mod set would get him to around 160k plus 20% each for the other 4 clones = 128kk
Add another 35% of the base 160k from hunter lead = 56k.
344k health at the start of the battle, that is a thicc boy
Shaak ti gives 15% health for each clone ally which would be 60%. 25% more than hunter lead.
So it could be 160k + 128K + 96k = 384k
Either way it's quite a bit of health for a marquee