Dead Drift Question

We'll be up on the Trinity early November for the steelhead.
I'll be trying my first hand at dead drifting and have a few questions.
This is all new to me, but willing to give it a try. I enjoy learning new
techniques and I'm sure some of these question are redundant. Or if you
could lead me to the FAQ's.

I'll be using a 2pc 9'#6 with WF #6 floating line. 9' 3x tapered leaders
with 2-3' of 4x attached to that. I have an assortment of nymphs, stones and
caddis to try.
I'll also be using a floating strike indicator where the butt and leader
meet.
Someone mentioned that it's best to put this at a right angle 90 degrees,
wondering how you would do this? I was originally going to tie on the
strike indicator on the straight line. I've gathered much info on the
internet, but didn't find anything on how to make the 90 degree bend? Tiny
rings?

Also is it necessary to use tapered leaders to make a dead drift set-up? Is
it possible to use 8 or 10 lb test line? Leaders are expensive and I'm sure
I'll lose my share.

Split shots, or Non-lead puddy for depth, where do you put the weight?

How do you make the double rig set-ups?
thanks,
-tom