Maf sensor and iacv sensor question

[Will]

Hi I'm having some idling issues with my car, basically I'm thinking of giving the iacv and maf sensors a clean, read that obviously I should be very careful and to also buy some gaskets, does the maf sensor have a gasket or is it just the iacv that has one? What's the best thing for cleaning? Also what gasket will I need as I'm not sure on the engine year and lastly is it best to just buy new sensors etc? Thanks in advance