ikankoi

hiyall, im new in this forum and wanna say hi to everyone here. just recently got a silver 98 GS300. my first modification is gonna be wheels, and I am into 18" (20" is kinda too much for the money). though, I have some questions: - what is the proper offset for the new wheels? im looking at konig theory 18x8 w 40 offset - what tire size? 245/40 or 235/40? and i still have tons of other qs, but Ill keep em for later =D again, greetings and thanks!