You'll find this useful. It shows where the brackets attach.
I found that there was a fair bit of filing (2mm in places) that needed to be done to the new gear lugs to neatly fit in the fuselage brackets. This wasn't a Grove issue, as their product is beatifully built. It was a 20 year old Kitfox jig issue I think!
Thanks guys ,very helpful , It'll be a bit more work for me .I'm fitting the gear to an Aussie variant of the Kf4 so it doesn't have the same gear brackets as the original . I've bought the gear second hand and it didn't come with all the bits , so I'm guessing I'll either have to weld on some brackets or mount it like the KF7 , and yep gun drilled ,very neat !