Class C Amplifier: Calculating the base resistor
In that topology all the base bias current is supplied by the source.  The base resistor is there to keep the transistor off until enough voltage is available to overcome the Vbe of the transistor. Now in your specific case you also need to adjust the input cap in order to achieve the high pass filter that you are after.
There's lots of info out there if you google a bit.
Class C Amplifiers

Resistor Rb connects to the transistor Q1 base. A biasing resistor
which connects to the base of Q1 try to pulls the base of transistor
further downwards and set the operating pointer dc bias point below
the cut-off point (In cutoff the collector current is ICO which will
be of micro amperes order and hence can be assumed to be zero) in the
DC load line. The dc load line is the locus of IC and VCE at which BJT
remains in active region.