sleeve the inside of the steerer tube? 1" Od. inside 1" Id fork will do the trick..

I found the BBB BHP 21 to be an excellent piece,
Its both a Quill and functionally a star nut.

because the bolt that pulls up the quill wedge is internally threaded at the top.

Bike Mine is the US distributor for the NL based company.

i used it as a stem raiser , but if desired
it can go inside a long enough steerer, entirely.