Heater core and blower clean out

[boot85]

I have poor air flow out of the vents and I would like to clean the crap out of the heater. I have a non A/C truck. I have looked through the threads and have not found exactly what I was looking for. I need to know what all needs to come off for this job. The heater core does not leak so therefore I do not need to remove it. I just want to clean up the fan and air passages. I am wondering if I took the blower motor out is there enough clearance to vacum the heater box out with a shop vac? Also if I just take the blower motor out what all comes with it? For example, will I need to take the hood hinge off because the fan will have to come with it?