How far from standard are you looking?
My T1N has a coachbuilt MH body and extended chassis and the converter altered the exhaust to a side exit, just ahead of the RH rear wheel.
This was accomplished by cutting the pipe two inches after the hanger behind the main silencer then adding a 90° bend and a straight length of pipe. It sits just in front of the front spring hanger.
I recently had to replace the bend as it was only mild steel and rotted out after 15 years use. I bought a stainless bend and new clamps on eBay then reused the straight section and polished finisher. Total cost was under £20!
Can you retain the main silencer or is this where your PTO, etc. fits?
Keith.