my thoughts,
first, if the loan you made is backed by post-dated checks, you need to comply with the rules on negotiable instrument. If this is the case, the reason why your guarantors are impleaded in the complaint because they have endorsed the check togther with you.
To settle the matter, you can execute an affidavit manifesting your humble intention to settle the loan and that the only reasonable amount you can offer (state the amount)becuase of your dire situation on your employment. It should be authenticated by the Philippine Consulate/embassy of the country from where you are now. You just have to make this manifestation before the Prosecutor's Office/COurt handling your case otherwise this will be filed in court and inorder that the court acquires jurisdiction a warrant of arrest maybe issued. Have your affidavit together with the affidavit of your guarantor filed. Prosecutor's office or courts would appreciate that cases filed before them would be settled amicably to relieve them of the humongous cases filed before their offices waiting to be heard.
Normally, you and/or your guarantors would be asked by the court officer hearing the case what can you offer to settle the dispute. Just remember you need to justify the amount you offer reasonably sound for the complainant.