Lindsay Lohan -- I'll Talk To You Oprah ... For $2 Million!

Lindsay Lohan's guts don't come cheap, because we found out she's spilling them to Oprah at a cost of around $2 million.

Sources close to Lindsay tell us ... The Oprah Winfrey Network (OWN) has been negotiating with Lindsay for 4 months. The plan -- an 8-part docu-series about Lindsay's struggles, her career and her plans for the future -- but we're guessing it's mostly about her struggles.

It's a better deal for Lindsay than just taking her top off. For that ... Playboy paid her a measly $1 mil.

Ironically ... Lindsay's latest rehab stint may have scored her more cash, because of the drama and interest created around almost going to jail, firing her lawyer, going to Betty Ford, bailing from Betty Ford ... and on and on.

Sources tell us ... Lindsay actually signed the deal at Betty Ford.

Lindsay got some perks from Oprah as well -- as in TWO fully-paid assistants and a stylist.

Substance abuse can pay handsomely -- Who knew?

Hey, we interviewed Lindsay for free -- check it out!