...found that out when I did my own swap last year. It doesn't really matter if you use stock piping or 2.5" piping (the latter is what I did)...it's just got the wrong bends.
Good news is that you can run a return line straight from the rack back to the reservoir, following the line of the subframe (which is what I did). I got some hydraulic line from a local hydraulic shop that was *way* overrated for the job and tossed it in.