That mount will take a bit more creative thinking to fix, mine was the more rearward mount.
That particular mount is an interesting one, it's shaped like an upside down bowl with a wide lip and has two 1/4" bolts on either side which come down and connect to the frame and within the centre there's a 14mm (iirc) nut.
You could still probably get away with putting in a piece of angled steel and run a bolt down to the frame with a bushing, but it may be better to just replace that floor section and get a new mount piece in there.