Too bad you didn't post this sooner. I just threw out some. I can start saving since I am part of a beer club at a local brewery and I get beer every week.
They really should call it warm IPL but that doesn't sound great.
It's like how Toyota called the wagon version of the Corolla a Matrix because Corolla wagon sounds dreadful.
https://www.morebeer.com/products/belgian-dubbel-grain-beer-brewing-kit-5-gallons.html
That's the only dubbel I've made. Not the most complex, but pretty good for a first shot.