Actually, equity in assets does not by itself disqualify you from an OIC, it just makes the Offered amount higher because you have to "buy back" the equity in the Offer.
You need to talk with an Enrolled Agent or CPA who specializes in Tax Resolution issues, and I don't mean the quacks at JK Harris or some other firm who will overcharge, over promise and under deliver.
The income is what may cause more of a problem than the equity.
FYI, I specialize in OIC's and have a very high acceptance ratio.