Are those the full flow lines?
Nope- - - - -those are the small diameter lines for the bypass filter. Any hydraulic shop, and most professional-level parts stores like NAPA can duplicate the 1/2" diameter flex lines. I like "single braid" hydraulic lines- - - -they're rated for 3K PSI, which might be overkill, but they will last about 3 days past forever. I'd suggest using a 6" hard pipe nipple threaded into the block ports to space the flex lines away from the exhaust pipe.
Jerry