[fazool]

Just pretend you are playing lead. Pick the root note you want to work around somewhere on the neck. Play your lead based on a scale rooted there.

But, the trick is just play the first (root), third and fifth notes and dance around those. Being a lead guitarist that is easy for you. Now, just play those three at the same time. That's the simplest form of a chord formation.

The rest is just flavorings on top of (or in place of) those three notes.

Drop the third to make it a minor.

Add another note for ambience. Or move a note for an inversion.

Start with that though - it's an area you know better than most of us I would bet.