WSFFL transfer fee record progression

As far as I can work out from what we have of the early history...

Purchases

£5m - Andy Cole to ? (Aug 1994)
?
£10m - Fabien Barthez to Short Straw Rovers (Aug 2000)
£11.5m - Mark Viduka to Real Muppets (Aug 2000)
£13m - Sergei Rebrov to Nil Satis Nisi Optimum (Aug 2000)
£14.5m - Jimmy Floyd Hasselbaink to Aardvark Abacus (Aug 2000)
£20m - Ruud van Nistelroy to Fred West LG XI (Aug 2001)
£21.6m - Hernan Crespo to Claymore Athletic (Aug 2003)
£28m - Didier Drogba to Fred West LG XI (Aug 2004)
£31m - Fernando Torres to Fred West LG XI (Feb 2011)
£36m - Alvaro Morata to The Cow-Faced Juniors (Aug 2017)
£58m - Pierre-Emerick Aubameyang to Mega Buck Bandits (Feb 2018)

£60m - Timo Werner to Stanley Athletic FC (Sep 2020)

£70m - Erling Haaland to Real Muppets (Jul 2022)

Sales

(a big gap in the early records so...)
?
£25m - Marc Overmars from Nil Satis Nisi Optimum to Barcelona (Jul 2000)
£25m - David Beckham from Fred West LG XI to Real Madrid (Jul 2003)
£80m - Cristiano Ronaldo from Real Muppets to Real Madrid (Jul 2009)
£85.3m - Gareth Bale from The Cow-Faced Juniors to Real Madrid (Sep 2013)
£108m - Phillipe Coutinho from Mega Buck Bandits to Barcelona (Jan 2018)