Ideas on making a scrog frame for a 4x4 and 8x4 fastfit table?

[WaitWut405]

So I am planning on using 1 inch pvc pipe and different style 3 way fitting to make a frame and somehow attach it to the fastfit tables, any suggestion on fastening it to the table itself? im thinking about just extending the legs down to the ground or saving some money on pvc and fastening it with heavy duty zipties or clamps. any thoughts?