As others have said, your cheapest option is a payment plan with the IRS. Just make sure you live up to it or liens can be placed. https://www.irs.gov/taxtopics/tc201.html
Even just getting a payment plant can cause a tax lien usually it has to be $10,000 but I have seen them for $800 before.
You sure about that? I specifically asked that question of my CPA earlier in the year and was told there would be no lien as long as you were under a payment plan and you were honoring the terms. The links below appear to confirm that.
"Installment Agreements: IMPORTANT - The IRS can’t levy until 30 days after the rejection or termination of your agreement. If you appeal within the 30-day period, the IRS will be prohibited from levying until your appeal is completed unless the IRS believes the collection of the tax is in jeopardy."
I held a cpa certficate for over 30 years. I ran also PYTA and AARP volunteer sites for years. I also was hired by the IRS to teach classes. Levying is no the same as liening. The IRS can levy bank accounts, sieze wages, and take accounts rec well before a tax lien has been filed. The link you provided talks about not levying this is not the same as liens.