Simple way to drain 71 blazer fuel tank

[flyingcubby]

I've been laid up after having kidney cancer and felt like draining fuel tank after 5 years setting. My brilliant thought was to stick a harbor freight transfer pump hose thru the fuel filler opening. But of course with my luck the hose won't go in any further than about 16 inches.
So I have another idea about disconecting the tank line from fuel pump and place a cheap electric fuel pump connected to the line and drain that way. What are your thoughts. Don't want to do a lot of pulling and stretching. Can't think clearly being on these damn pain pills.
Any thoughts would be appreciated.