Puppy, it would depend on the contract and the customer requirements with regards to pilot experience.
Generally speaking the Company assigns a particular aircraft depending on your previous experience and interview results; you may find yourself starting up as a SIC in either the '76 or the '139 if you have low enough experience and then advance to the single engine light/single pilot turbine crowd (AS-350 and A-119), or may find yourself assigned to the 350 and 119 directly and then move up to the 109 and the 135.
I can confirm that ERA has begun a travel allowance program in which depending on where you live, you may elect to either receive a 200$ monthly bonus (taxable) or have your airline ticket reimbursed (up to 500$).
However, if you electo to fly down to the Gulf area, you shall still need some kind of personal transportation there.