you should be able to get a long block for under a grand. dont let them just get a new head, go ahead and get a new motor. check and see if you have a city motor company close to you. they can get you a long block and refer you to somebody that will drop it in for around 400-500 dollars. then you will have a parts and labor warranty. or if you want to go the cheap and fast route - call lkq and have them find you a used low mile motor and drop in same day!
do listen to the other that said to not skip work, rent a truck or van from the commercial side of enterprise should only cost maybe 250 a week.