No problem, I hope this stuff helps.
As for side draw reins, any long reins with snaps will do. In a hunt saddle you can clip to the girth buckle, where it attaches to the saddle, that's where I usually put them. And also put your straight reins through the top ring on your martingale if you have a 10 ring.
I made my own draw reins with western reins with ties and scissor snaps, much cheaper then Schneiders fyi

Here is a picture of high side draws, you can see them attached to the saddle, and running through the bit. Also the straight reins are through the martingale.

Normally I do round circle figure eights so that you have a straight ride for a few strides in the middle. Just like attaching two round circles together.
The main thing I can say that I have to work on when I do these exercises is to not let the horse run through my hands when I push them back up, make sure he respects the barrier and will slow down again when you ask.