Eric Love, the super-colorful figure leading Joe's legal team, just checked in from the HQ in Ft. Worth, Texas ... telling us they're hitting the road bright and early Monday en route to 1600 Pennsylvania Avenue.

As you can see ... the big bus wrapped in a plea to get Joe sprung from prison looks all gassed up and ready to go to D.C. ... and Eric says they're gonna enjoy the weekend then get down to brass tacks.

As we first reported ... Joe's legal team produced a Texas-style video asking POTUS for a pardon, claiming the 'Tiger King' is not only NOT GUILTY of trying to get Carole Baskin whacked ... he was also FRAMED.

Joe's army of lawyers will attack on all fronts ... they're appealing Joe's conviction, asking Trump for a pardon and even pursuing a malicious prosecution lawsuit against a bunch of people involved in Joe's criminal trial.

As you know ... there's also evidence the alleged hitman had an ax to grind with Joe, because he told us his testimony against Exotic was "payback" and he wished he could've done even more to hurt Joe.

And, as we previously reported ... Trump actually joked about a pardon for Joe when talking about the 'Tiger King' at a coronavirus briefing.