Sorry to hear about Lily's lump
It's good you changed vet! We did same thing few years ago, and this one she have now is such a sweetheart.
He always takes lots of time for you and your pet, he gives people all the time they need!

I'm sure your Lily will feel so much better after that lump has been removed! I spray all will go well!

I see your cat hates to be in a car. Maybe I can help you with that!
Our Inka absolutely hates to be in our car, in her transport box.
Because we go rather often to our appartement at the sea (Ostend), we had to find a solution.
Well, we found it! This is what we did: we put the box on one of the backseats, and then cover it tight with coat or something else, making sure that Inka couldn't see any light. Guess what: she slept all the way every time (70km!)!!

Good luck!