Front brake hoses- Straight or 90 bend?

I have the 77 C/K-10 4x4 calipers mounted now and need to get brake hose and banjo bolts. This kit looks like it will fit my stock hardlines and pricewise is a pretty good deal ...

http://www.speedwaymotors.com/Rubbe...tting-Kit,25623.html?abBase=6178563#answerbox

... but I am wondering if I need the hoses that have the 90 degree bend at the caliper? When do the 90 bends come into play? Also this line is 16" long. I don't have any lift and the stock hose is 9" without the little S hardline so will this be long enough and do I have to fabricate a mounting point in place of the kingpin mounts previously used.

Any advice is appreciated?
Al