Thanks Guys for all the help. I will go with Erics setup of installing the inlet joiner up to the turbine but not installing the carbon bypass.
In Mumbai the temps are in the mid 30 degrees C, so i would be careful of heat build up in a full bypass setup after shutdown.
Eric i have already made the naca ducts in the bottom of the fuse. Jimmy i have coated the rear fuse with BVM heat shield instead of the ceramic cloth.

Best regards
Chaitanya.