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Gday..havent been on here for a while and just happened to see your thread.
When i had the thunder rims the tyres were 245/35/19 with no scrubbing even lowered so you should be good to go. Tyres were Achilles sport 2..ok in dry but
not great in the wet for my liking..
The rims were predrilled otherwise adelaide wheel worx etc will do it.
new tyres too with 245/35/19 kuhmo ecsta le sport ku31 all round...fantastic tyre...wet conditions doesnt flinch, no road noise, excellent asymetrical tread too..best tyre for $200 each.