1990 Triple E Brake Fluid Reservoir Access - Resolved

Update: I opted to buy a step bit (cone shaped drill bit)that went up to 1 3/8 and drilled a hole directly above the reservoir. The hole ended up maybe being about an inch wide. I purchased a long narrow funnel and it fit in the hole and was able to reach into the reservoir. The floor at the driver's side foot area is just a metal floor, no wooden sub floor or anything above the metal there.