Flip Korda to rightie, he serves like Stich, Smith, and you.
Duct tape, stuff the camera behind in the fencing behind the baseline, just off center, 21' behind the baseline, use tape to hold the camera in place, about 5' off the ground. Stand on other side, hit first serves towards camera. Then from camera side, hit away to other side.
There is video of me hitting wide serves, right at the intersect of sideline/service line, where the ball hits a camera mounted on a 36" tripod on a IN serve. You's will go higher and faster, since I was 62 then, and couldn't run one step or push off with my back foot.