1J0 601 027 Steel Wheel Query

[wolfsburger]

I'm looking to get set of steel wheels to run throughout winter, looking around online the most common are 6.5j x 16 et42 steel wheels from a Beetle/Bora the part numbers are always: 1J0 601 027 followed by a letter T L or sometimes R/T can anyone tell me what the differences are or if it even matters if I get wheels mismatching letters? 

 

Prices are varying from as cheap as £10 upto £60 for a new one, obviously they're for winter so the cheaper the better. I've got 2 useable tyres on my standard alloys which i'll get swapped over and buy a set of winter tyres for the front, job done.

[wolfsburger]

Managed to get 4 the same all ending RT I should have just checked my spare as its a full size steel wheel with same part number stamped in