Hot Rods Hailbrand tire size ideas

I have a 47 Fiat Topolino with 15X10 Hailbrand Sprint rear wheels and 15X6 fronts. I was running MT 29X12.5X15 on the rear wheels, but now I am updating the front wheels to 6" wide and want to run radial tires. Mt makes a radial but the front would be 29" tall, way to big in my opinion. So I am looking for ideas on tire combinations, brand etc. BFG, Toyo, etc. that would work on my wheels and provide for around a 23-24 inch front tire diameter and a 28-29 rear diameter. Any, all advice would be appreciated.

to view vehicle images: http://www.hubgarage.com/mygarage/vehicles/10409

 

I am running the same rim size and tire combo on the back of my Fiat. I am running Michelin 135SR15's on the front. I got them from Coker Tire. It's a small tire. I needed that size because I am running fenders. Try Coker's.