I have my anemometer mounted on a 30' mast and my ISS is about 50' away. The cable is simple RJ11 phone cable. You can patch in any additional cable you need. PM me if you want some tips on this. As far as DIY on a temp sensor issue... Is it the console or is it the sensor?.... Try one or the other and you are over the $149 Davis refurb cost... Plus, they calibrate and upgrade all parts that are needed. I'm a DIY guy when it makes sense. When it could be 2 parts that cost more than a refurb, I always go for the refurb. Davis customer support is GREAT! I support multiple sites and have NEVER had a complaint with a Davis refurb.....
Greg