That would be tough though. It's estimated that the area near Dark Forest is around 614ft above sea level and the main part of the gardens is around 520ft above sea level, so that's around 96ft not including structure. Add on a hypothetical 69ft for lift hill (that's Rita's max height) you get to around 165ft, not the tallest woodie by around 20ft (30 if Colossos reopens).
The drop would need to go off to the east of the gardens where the elevation drops quite a bit more to get anywhere near the height record.