Good plan but unfortunately there is more to the these as they are an upgrade and so need the specific bearing body too, they replace the glacial bushes that came as standard and wear out every fortnight. I have found some but they don't fit the TARA system; they would fit my Whyte Preston-1 but I've already got some on that. They were a proper fit and forget upgrade.
I think the only difference is the distance between the swing arm "bearing faces" do you think it would be sensible to try putting spacers in? Although, the kit does come with a new spindle (threaded at both ends) and the TARA system obviously requires a quick release spindle and I don't know if that is upgraded to a beefier diameter or something