Arch lip to ground is 25" all around, so a bit more than your 61cm. There's about a half an inch adjustment still in the rear.
Everything on the coilovers are as they came from Weitec, they haven't been modified in anyway.
I'm not 100%, but I'm fairly they have the tab to allow for the .:R32 ARB. I think there's just the one bumpstop up front.