i usually dont risk the tengus for anything other than stuff thats pretty safe because they run for about 3.5b each :P
also a lot of fits of mine also use cap transfer to be cap stable.
the drone boats are usually spider tanked to keep their buffer maxed while still being able to run remote reppers and be stable.
for pve i do mostly null stuff. 7/10 and better. usually do 10/10 in under 30 minutes at most. and most of the time is going from gate to gate.