Hey there Crew Cab!
One thing most people are not aware of is that there are other sources for the hose and hose elbows. Gates has these available in an assortment of sizes and shapes, such as 45*and 90* elbows and "hump" hoses. These hump hoses are short straight connector hoses with a molded in hump to accomodate some misalignment and to handle vibration that could cause damage to a short section of regular hose.
If you go to a parts jobber who does much fleet business they will know what you are talking about. These are in the Gares line in the 23xxx series and the silicone turbocharger hose is in the 26xxx series. The catalog will even tell you the working pressure rating of the hose.
By using these aftermarket hose pieces and some common tubing, even copper would work, it should be possible to fabricate whatever you need at a reasonable cost. One other thing to remember is to use the proper clamps, not just common clamps.
Hope this helps!