Ours was 3K, included all parts, glass, labor. The shower is a modified square shape a square with a slice off of one of the corners. Of course, that's where the door is. He really struggled with getting it all to line up. Mostly because the standard door wasn't the same size as the opening for it and there is an additional trim piece of glass beside the door. Looks great in the end, fainted at the price. Good to see that others are familiar with these kind of numbers. He did everything, measure, fabricate, deliver, install. They were very tall pieces of 3/8" tempered glass. It was no picnic for him!

Good for you, you did not accept that and they are getting redone. If done correctly...you should (or can) get away with NO vertical plastic stops. I try to avoid anything that collects gunk and requires maintenance. I measure and order all my doors and the gap should be 1/8"-1/4". Anything over 1/4" is too much for my satisfaction. 1/2" is totally pathetic. When this gap is done correctly, you will find you do not need a plastic stop to prevent water from leaking out. If you use a sweep on the bottom, that will keep the door in place where it needs to be because it puts some drag onto the threshold. Measuring takes time, a lot of time if done correctly.

I'm in a high cost area of CA and last year I paid $1,200 for 36 x 70, 3/8 starphire glass. Your price might not be that out of line for the very expensive Maui market. Can you get a bid from another shop?

Designed properly, a channel is not ever visible. You don’t just glue it on the top. That’s an improper design. If you knew enough to design, measure, and order this correctly, you’d know that, and you’d know where to find what you’re asking for.