I have these on mine, with a 2inch rise. They are nice but not cheap and US postage cost may now make them prohibitive unless you can find some in the UK:-
https://www.ebay.co.uk/itm/WOODCRAFT...YAAOSw7z1Z-yKG
You can get different adapters for them too, if you want more or less rise beyond what moving up or down the fork leg will give you. I find 2in comfortable for me but I think no rise would be crippling!
I spotted these:-
https://www.ebay.co.uk/itm/50MM-RAIS...IAAOSwQita3zX3
I suppose the other option is a pair of cheap ones from far east?
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