Never replaced my fuel pump but cleaned the original one several times.
Agree, taking the fuel lines off the pump is a bit fiddly but no problems if you do not rush. The first time I cleaned the pump it was done in a workshop (never again), they broke one of the fittings and then managed not to fit it properly back on, so fuel was leaking out in the desert..... Was fun to redo the job in the sand...
https://www.aulro.com/afvb/images/im...2006/09/31.jpg
Anyway, since then I made a hole with a door in the floor to access the pump withouth taking the bloody tank down - now it's easy!