Ransomes spare parts Antelope MK6 20 Inchs

Hello everyone,
I just bought a Ransomes Antelope MK6 - 20 inchs
It is perfect and fine cut
Unfortunately the right wheel does not result
Also I am looking to buy a cylinder pinion and a pawl, used preferably but in good condition
On Ransomes catalog reference are:
-- LY 00019 Pawl
-- LB 00027M cylinder pinion R.H
If a person has these parts and / or known address where I could get I thank in advance for advice and information
Sorry for my bad English

Christian from France
Thanks in advance for your help

Best regards