Progress sort of try building the fire on top of the fire box grate but without the fire basket and see what happens. I'm thinking you will get higher temps with getting the air under the fire and letting the ash fall down below the fire so it doesn't choke it down. I also don't think the ash will fly around because the fire will still be lower than what it was using the basket.
Let us know how it works
I'll give that a try. I guess I would probably need to use briquets as my starting coals, while I usually use lump. Lump will probably fall through the grate. No big deal though.