We did exactly the same a year or two ago with my last startup. Just did it component by component with a general rule along the lines of "if you have to edit i

We did exactly the same a year or two ago with my last startup. Just did it component by component with a general rule along the lines of "if you have to edit it, convert it to JS". The project was moving so fast that components would often become obsolete within a year anyway. Plus they were all very small so converting manually was trivial.