WRMB269

Mount
 https://www.amazon.com/Skywalker-Signature-45-60in-Adjustable-Mount/dp/B009P78R68/ref=sr_1_1_sspa?crid=2XI9IJ7I0LN9T&keywords=eve+antenna+mount&qid=1651157149&s=electronics&sprefix=eve+antenna+mount%2Celectronics%2C76&sr=1-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyVTFFTzdQRFo5STNUJmVuY3J5cHRlZElkPUEwMzc4OTEwVjM5QTJOMlI0MVQwJmVuY3J5cHRlZEFkSWQ9QTAxMDM5MzgyWDVUTENGNkI5STFOJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
Coax
LMR240UF  for runs shorter than 25ft LMR400UF for anything over 25FT
Example of LMR240UF jumper cost with connectors look around for best price! https://www.ebay.com/itm/173767279461?hash=item2875564365:g:NbIAAOSwMSRfSTbj
Example of LMR400UF jumper cost with connectors look around for best price! https://www.ebay.com/itm/184232597543?hash=item2ae51e5827:g:KDEAAOSwlsVegeNH
Antenna    (don't get obsessed with gain claims)  The most important factor that will effect performance is how high the antenna is get it as high as you can!!!!!!!!
 Option 1 (ready to install)
 https://www.amazon.com/HP-50-N-460-470-GMRS-Band-Antenna/dp/B08N17RRKT/ref=sr_1_3?keywords=gmrs+base+antenna&qid=1651157772&s=electronics&sprefix=gmrs+base%2Celectronics%2C95&sr=1-3
Option 2  (cheaper but need to use your own pvc pipe)
https://www.kbcubed.com/DBJ-UHF-5dB-GMRS-Antenna-by-Ed-Fong-p379488596
 
Hope this helps you get started and good luck welcome to GMRS !