DIY Exhaust Pieces?

[72step]

I just did a quick search and most everything is V8 Dual Exhaust setups. I'm confident I can set up an exhaust if I can find the darn exhaust manifold connector pipe. The single exhaust on these trucks is so so so simple. Straight down from the manifold, 45 degree piece, straight back muffler, then figure out what happens at the rear, then a 90 or 45 piece to exit behind the tire. That's why I hate to drop the $300. I don't even know how long I'll keep the engine in there. Once I get it painted if I find a good deal on a small block, just maybe.....