You might see if the owner will do seller financing on the house part, but you would still need to come up with cash to do the work, and then you can refinance out when you are done with a traditional loan and pay off the seller.
You may also do a search for investor/rehab loans. You may be able to find a short term 60-90 day loan that will let you buy and do the work (which you would have to get done quick) and then refinance the house.
Last choice, if you have credit cards or can get an unsecured line of credit from you bank you can buy it, do the work and refinance after you are complete. These are solutions that investors frequently use to flip homes so they might work for you to get a fixer upper into a condition that you can get a traditional loan on. Good luck.