Greetings Momo5. That Kyosho looks increadible
. In regards to [foam] tires ( according to the Pics, these wheels are for foams dough nuts because they're generally flat across the width of the wheels)-Calandra 1/8th foams dough nuts (from Team CRC) look as though they will fit , glued down with CA.
If you look inside of the wheel, is there a four(4) pin cross , versus a three(3) pin cross to drive the wheels? There may be a direct fit wheels off of current 1/8th on road cars.
Any ways , goodluck with this Kyosho.