The more costly items in stock, seems like they were a bad decision, made through inexperience in the business? A learning experience that you wont repeat.
If you were to offload these items, for something around cost or a little less, would the business be profitable.
Are you in a perishable type of product? Does your stock, apart from the few high cost items, hold its value or is it seasonale?
Getting advice from accountants is all well and good but you need one with experience in your type of business. Most accountants are good at the basics, but you know more about your business than anybody else. Would you talk to a similar business in another town, most business people are happy to lend their experience to others.
Your gut feeling will probably guide you. Best of luck with your decision.
Browtal