I got my last stubborn one off by making my own puller - flat bar of 10mm thick with 2 holes drilled at 75mm centres, using 2 8mm x50 long allen bolts, rescrew in the crank bolt without the thick washer, fit plate with screws and then turn crank bolt with a spanner - it withdraws itself then by the crank bolt pushing against the plate. Leave gearbox in 4th gear and handbrake on