why not have a look at form z and their new 3d modeler bonzai3d currently in Beta stage http://www.formz.com/

while your at it checkout form-z itself!

Bonza3d is cool;I beta tested it and still testing....full of stable/unstable functions The unstable functions are being cleaned up.A lot of CRASHES is being addressed as well;The team is making progress though...in time it's a good modeling tool to consider creating Game objects.I even export with little effort....like I said,in time.

Yes everything takes time