I don't believe this needs to be difficult. Truly.
I approach every VO project - no matter the size, budget or client - the exact same way:
I'm here to make your life easier.
Everyone is short on time, decisions are made quickly, deadlines shift, the editor decided to elope... so the last thing you need is to worry about is getting your VO in the can.
Want a free sample of your script to make sure my voice will "fit"? By all means.
Need the final product done in a few hours? No problem.
Directed session? Done.
Broadcast-level audio quality and a voice that brings your project to life? Yep.