Eurospares quotes about $1700 for it. Might be better off having someone build one for you if you still have the connectors. These guys do a lot of work for NASCAR and have made F1 hoses for 575M owners in the past. Goodridge (704) 662-9095 174 Gasoline Alley Mooresville NC 28117 United States
I have a used unit. Any high quality hydraulic shop should be able to put new hose and reuse the fittings.
I rebuild hose often. Just have to measure stuff and see what fits. There are many choices these days. I have also just custom make adapters and used AN hose and fittings. Many options out there. On that hose, you can weld AN adapter on the tubes and and use AN fittings and hose.
Recently we have just been buying Aeroquip or similar brand and reusing the Ferrari fittings. Quite easy actually.