basically the answer is only in exceptional circumstances.
All of our coders are kept very busy by their DBTech schedules, and it only becomes financially viable for them to deviate from that if the job is going to be *very* lucrative.
Basically what we do is work out how long a project will take, work out what mod that would stop being made, and work out the projected 6 months profit of that mod. We'd only take the job if it exceeded this number.
With that said, feel free to ask and let us know your budget, and we'll let you now if it's feasible =)