Discrete DSB modulator without transfmormers

Hello, I am trying to make a Discrete DSB modulator without transfmormers fpr a single frequency around 9MHz.
I have found some interesting schematics on the net.
http://zpostbox.ru/single_balanced_mixer_circuit.html

I would like your ideas of how to transform them to use no coils as well. For example on the varicap schematic how should I replace the transformer to a balanced-to-unbalanced circuit.
Performance is not so critical.