Most courts will permit a payment plan. Additionally, you might be eligible to perform community service in lieu of the fine. While you might be arrested on the warrant, it is unlikely that you would be placed under arrest for a single class-C warrant for an expired inspection sticker. It might be helpful to consult with an attorney who is familiar with your court. In many cases, an attorney will know how to get you back on track.
Nothing in this answer constitutes an agreement to represent you in any criminal case. Additionally, the information provided above does not constitute legal advice.
You can request payment options from the court based on your financial circumstances. You cannot "sit out" a class C misdemeanor fine because it does not have jail time as a punishment. If the court won't give you payment options, you may want to contact a local traffic attorney that is familiar with the court and who might be able to help you achieve a better result.
The information provided does not constitute legal advice and is presented without any representation or warranty whatsoever, including as to the accuracy or completeness of the information. Always contact an attorney when seeking legal advice.