Yep, there's two known questions in the database that relate to flights in or out of Bali.
Theres quite a few international flights - all from local airports like Port Moresby, Honiara (in my example above), Christchurch, Jakarta. I'm sure there are others, too, but at this hour of night my brain is already on its way to bed.
After Flight Planning, do Navigation. Its probably the closest (though they just give you the fuel, instead of making you work it out). There's a few questions on the ERCs, and the Point of Latest Safe Diversion is the most flightplanningesque question type.
Theres's also a lot of IREX material in Navigation.
I wouldn't be too concerned with "keeping it 727 while the numbers are fresh", as the numbers for Performance are written on the weight and balance sheet... and even if you do do Aerodynamics and Systems next, you won't be trying to memorise performance figures for the 767 - it's a totally different type of exam.