[boxhead]

Yes talk to your engineer, but I am pretty sure it is only the Calipers that are in question (due to a lack of dust seal).

I did not require a "pressure loss" warning light, however I did require a fluid level sensor, I will have to search, but I bought Daewoo ones (will get the part number for you) they screwed straight onto the larger reservoirs in the willwood kits I have linked.
One thing my engineer looked for was a label that advised DOT 3 minimum brake fluid, The Daewoo caps did not have this, but my clutch reservoir (original Willwood one) did have the labeling, he was happy with this.

I just searched the forum and can not locate where I mentioned it on here.
I dont have the reciepts either, so apart from saying Daewoo I am not sure I can help much more.
I will ask the shop I bought them from if they can find a copy of my invoice (in the puter), they where from a Holden dealer as GM bought out Daewoo.