I don't think there are any specialist for that.. And the Interior you can't change over.. But you want to have a LHD Glanza right ? Some parts of a Glanza don't fit like the interior the plastic dash don't fit.. Speedo and meters does fit.. You have to look up what do and don't fit mate.. I self have only the Speedo and meters fitted and the seats in the interior.. Greetings, Jeroen