Has anybody installed the Ratio Technology kit on new SRAM components?

I need shifters, chainset (not sure what size), derailleur and cassette (not sure what sizes).

They will fit on a Sonder Ti Gravel frame.

I don't want to spend the earth if that is possible nowadays.

Any advice on gear ratios gratefully received.

Thanks

I run a Ratio Tech cage on a Rival mech to handle a 52 cassette, but have left that 11 speed rather than upping to 12 by switching out the shifters innards. Can thoroughly recommend!

I'm not sure I follow what you're looking to achieve though with the parts list you mention needing. Are you looking to upgrade/increase an existing groupset's compatibility?