Hydraulic hose question

The order of assembly is not necessarily as important as getting all the air out of the system.  I have Shimano brakes and so far, I have been able to assemble the system, then pressurize the system from the bleed port with a syringe and force the air out in front of the incoming fluid.  I have seen brakes where the bleed port was in a bad place or the caliper was poorly designed so that air gets trapped, and then you have to go through gyrations to get the air to go up the hose (remove caliper from mount, rotate to get the air to go up)...  those *might* be a candidate for a top down bleed...  the Shimanos actually respond very well to "flicking" the lever to get air to rise up the hose and out the reservoir...  I do this with the cap off and just snap the lever end repeatedly and very soon I get a nice firm lever...   always make sure to keep enough fluid in the reservoir to cover the piston, or you'll just pump air back into the system...

I probably gave you way more info than you needed...  hope something in there helps.

They are they are pretty easy to bleed. YouTube is your friend. Buy one of those little barb insertion tools. I’ve got a cheap off of Amazon that works good.

Make sure there is a little bit of tubing showing between the olive and the flange of the barb after you’ve snugged it down. If not, cut it off and do another one.