photoshoots should be easy - in the career rewards you'll find a working camera (followed Uni or NL, I think - and BV has a handheld digital camera). Just let a sim be the photographer, and let the model pose
. There's probably a buyable version somewhere, and you can find photo lamps at MTS2.
I'm pretty sure someone already made a Model career - my best guess would be to check either here at Insim, or at
MTS2. (found two -
here and
here).
I found some
traffic cones that summons audience who either booooos or cheers for a chosen sim. (Simslice also have a bunch of other things that might come in handy. They're pay, but should be somewhere
here)
catwalks are quite easy to build - as long as you've got the foundation walls (can't remember which EP they came with). There are several
model pose boxes too.