Sirius 150 Weather receiver, GPS & Antenna

We are looking to acquire and integrate a Sirius 150 weather receiver.

Q1. The documentation says a GPS is required. If I am providing GPS to the e165 MFD via NMEA 0183, will that satisfy the requirement for the Sirius 150 receiver?

Q2. The documentation refers to a type SRA-40 antenna for the receiver. Will any SRA-40 compatible antenna work? When looking at specifications for the SRA-40, the specs only mention Sirius XM and I am not sure if that also includes weather in addition to the radio?

Q3. Can you recommend antenna and cable to handle a 50ft length?

Thanks.