Hi,
i did a model for you real quick.
Don´t know the level of detail you need.
If what you see on the Picture below is o.k. for you, then just tell
me the Format you need (.obj, .3ds ect.) and i will upload it.
Blender is a good alternative to the big commercial 3d Apps. Its a little bit
hard to learn, but once you master it, the work flow is unbelievable efficient.
The community around it is very helpful as well.
you can find it
here