Hey there,
Thanks for using freelancer.com,
I work on 3ds max, and yes I can provide the file in obj, I use 3ds max,
and As this is just a modeling + color task,
yes this thing can be done very very soon,
Because I can start your project with very next moment we deal for it.
and as this is a regarding music, I may giive a great suggestion for your upcoming success, from promotion to great ideas, that may can make a music video more innovative : )
Looking forward to have a great experience : )