I was wondering if I can bypass the internal fuel pump with an external one?

My 1999 ford focus fuel pump has broke and it's a bit of a pain to keep dropping the tank if it does it again, by the way it does not have a panel under the back seat. Would it be easier bypassing it with and external one and leave the old one where it is or would the sender unit not work properly

My 2000 went through two fuel pumps (under warranty - one an extended warranty from Ford because they knew this was a problem) but the last one lasted until I sold it with 147k miles. The problem was eventually rectified (forget the exact reason - too fine of a filter or something if memory serves me correctly). Check around for extended warranty information too - probably not still valid but it was a recall at one points for a 2000 model year).