Not having more details, it is difficult to advise you, but unless you really need the 5k to 10k, I think you should hire an attorney to guide you and pursue this further. The numbers being discussed are extremely low. You should amend your EEOC charge to allege unequal pay, and pursue all avenues. Naturally, if you intend to work at the company in the future, settling might be a better option, although not as lucrative. I'd be happy to discuss your options with you further.
The value of each case depends on the specific facts of each case. You have to examine what your actual damages are in terms of lost pay, lost benefits and rights of employment. You should not sign any documents at the EEOC mediation or in settlement without having them reviewed by an attorney. If you are actually able to prove the Equal Pay claim, you should make sure that you mention the facts supporting that claim as a part of the mediation discussions.