Why not use the same size resistors for each stage in a Kevin-Varley divider?
I've not seen this type before, but here is a 3 minute answer.

The arrangement uses 2P10T switches to select the voltage drop across 2 of 1011 R's in a string.  The resistance of each stage decreases by a factor of 5:1. Thus 20k is shunted by 10 11 x 2k = 22k and 2k and so on.

If you change the R ratio from 5 to 1 then the the spreading between dual poles might need to increase to 10 then you need a 2P20T rotary switch for each and twice as many resistors

With this design the tolerances are not equal. 
The sensitivity to mismatch error is reduced by the number in the string=10.  The requirement to be 1/5th the previous Digit value becomes LESS critical by 5 so you can choose parts for each digit 0.1% 0.5% 2.5% and get 0.1% accuracy 

Commercial examples of Kevin-Varley  instruments