Hello Jay,
I bought this in bunches from china... that kind of assortment kit with lots of values... Even reading what they were gave me headaches hahahaha
Ok... I've substitute for 1nF -> 150kHz.
Sadly in this kit there is nothing between 1.5nF and 1nF...
I have ordered some new parts to build the meter (Specially the 1n5711w which is pretty impossible to find here... I've bought 1N60's hope it works xD)
There is a 1.5nF cap in the bunch... I'll see how it behaves! Anyways, thanks a lot for your time helping me!