I believe that if you are considering real estate investing than you are on the right track. If this contractor that you know wants to help you out then I suggest that you hear what he has to say and find out how he can help you out. If at any point it is not what you are interested in then you can always politely back out, or try to get his help in a separate way.
The amount of money that you have saved should not limit you. If you have an idea of what type of real estate investing that you want to do, then find an investor to help you out with that idea. Someone from you family, community, local investment clubs, or even the contractor might be willing to fun your investment ideas.
Keep in mind that real estate has many option. You can buy foreclosures, pre-forclosures, residential, commercial, paper and probably a million other things. Keep your eyes open to your options and something will appear.
Good Luck!!