I was reading through WUSTL's website and brochure, they have the possibility to transfer more or less a years work of LLM credits to a JD.. is anyone attending WUSTL that could tell me about it?

A lot of schools have transfer program, but the competition for transfers are huge. You've got to be straight A's + a lot of activities. Out of class of 100, there are usually 1-2 spots to transfer.

Problem is you will have to take a lot of 1st year JD classes during 2nd year.
You will not have those classes done by first summer break, when everyone gets summer job, so you lose 1 summer of work experience.

Taking it all in account, why not just get JD, if you want to work here.
LSAT is not that difficult.