LTC5562 mixer evaluation board - urgent response required!

Dear Analog Devices,

We are trying to do a demo for a customer in which we would like to use the LTC5562 DC2483A-B evaluation board (LTC5562 mixer as a downconverter) spannered in to our set-up. For this demo we only need one set of frequencies:

RF = 5.5GHz

LO = 7.1GHz

IF = 1.6GHz (LO - RF)

There is a major hang up though: On the evaluation board the RF port of the mixer has a 1:1 transformer fitted, the TC1-1-13M+ from Mini Circuits, which doesn't go up to 5.5GHz. Mini Circuits do have transformers that go up to 6GHz, even 8GHz, BUT they are not footprint compatible. Does anyone here know of any transformers that can fit on the evaluation board to allow us to tune the LTC5562 to the aforementioned frequencies. For the IF port there are footprint compatible alternatives, while the LO can be single-endedly driven. The RF port is holding us up though.

Suggestions welcome!