if you have poser 2014, you  can use the fitting room , a external script like "Morphing Clothes" or "crossdresser 4.0" (a friend used this latter and conforms) I could do that that you want ( Since I not used any of them so I can not advise any )

I particularly fix the clothes in zbrush so I do not know if it's an option that can help you.

I've found very useful for "extreme" big muscles,non conventional bodies , characters  giant breasts etc ... is the dynamic clothing, with a little practice it makes clothes that fit well with your models also