874 rwhp and 800 rwtq ! Yikes..that's a bunch..and then some.
Perhaps for street use, something like a Nitto NT-555DR in a 305-40-18 on 10" rims might do the trick ? They would last quire a while, not too expensive, and still useable in the rain. You don't want too much stagger though.... or the car will tend to under steer.
275-40-18 Nitto 555's on 10" rims..on the front... (or 285-40-18)..with Nitto NT-555DR's in 305-40-18 on the rears, also on 10" rims, just might be an optimum setup. Then only 30 /20 mm stagger.
But this is just pure conjecture and speculation on my part.
Even with BMR LCA relocate brackets installed....(and using middle holes)
and 305 rears.... you could still have issues if globs of TQ involved..and 3.73 or 3.90 or 4.10 gears used....esp with unknown road conditions.
Jimbo