You can get 2.48 on a six month jumbo CD from a bank in Alabama... You can get the same rate for a $50,000 CD from the same bank. If it compounds daily (which many do), you would have $102,510.92 at the end of six months...
So you're looking at $2,500 worth of interest over six months but you'll probably incur a few other costs in there. Not to mention the fact that you'll have to pay that entire $100,000 back within the first billing period, so coming up with that might be a bit tough. Unless it's possible to set it up so that you only have to pay that card back on a yearly basis or something. Some kind of business card maybe.