Customs walton fabrication frame mounted question

I have a 53 Chevy belair and have it mounted to the frame but question is what did yall do to easily fill/check the reservoirs. it sits right under the driver seat so i dont see cutting a hole into the floor would be ideal. On the left side of the cylinder it has a line that goes from front to back of it i was debating if i could T there and run a small reservoir up to the firewall or somewhere easily accessible but unsure if that would work

 

I think it would work as long as you kept the fluid full so as not to trap air. Would it not be the same as a remote reservoir anyway?

 

I think it would work but appears to be under the bowls so unsure, guess wont know till try. thanks for replying