Tires for Optima rerelease

[Saito2 6686]

What are my tire options for the re-re Optima? I'm looking for something that might last on multiple surfaces (dirt, gravel, occasional asphalt) similar to Proline Dirt Works tires (or even Tamiya oval blocks, which last surprisingly well on varied surfaces). I can upgrade to the Turbo Optima wheels if that opens up more tire size availability. Thanks for any insight. 

[markbt73 5316]

Here's an interesting notion: what about 1.55" scaler tires? They should stretch enough to fit on the 40mm/1.6" Optima wheels. They'll need to be glued on, and they might be a little soft and squirmy in hard turns, but they should last a good long while, and because of the soft rubber, they'll have good grip.

Something like these: https://www.rpphobby.com/category_s/362.htm

Similarly, the 1.9" scaler tires (of which there are probably a hundred choices) should stretch a tiny bit to fit Turbo Optima wheels, but they may look too tall on there, and make it look too monster-y.

Or... you mentioned oval blocks; they should fit right on to re-re Turbo Optima wheels.