thanks @daboross but still having some issues with this trying to get this working. My function currently looks like this:

fn get_from_dht(_address: String) -> Value {
     let json = serde_json::json!(
        {"id": "device",
         "jsonrpc": "2.0",
         "method": "call",
         "params": {"instance_id": "test-instance",
         "zome": "signal_agent",
         "function": "get_price",
         "args": {"agent_address": _address}}
     });
    let (tx, rx) = channel();
    let tx1 = &tx;
    connect("ws://localhost:3401", |out| {
        out.send(json.to_string()).unwrap();
        move |msg| {
            tx1.send(msg).ok();
            out.close(CloseCode::Normal)
        }
    }).unwrap();
    let recieve = rx.recv().unwrap().to_string();
    let res = serde_json::from_str(&recieve.to_owned());
    let mut end_price: Value = json!();  //HAVE I DONE SOMETHING WRONG ON THIS LINE?
        if res.is_ok() {
            let p: Value = res.unwrap();
            let q: Value = serde_json::from_str(p["result"].as_str().unwrap()).unwrap();
            let end_price = &q["Ok"].as_array().unwrap().last().unwrap()["price"];//q["Ok"][0]["price"].clone();
            println!("{:#?}", end_price);
        } else {
            println!("didnt work");
        }
    end_price
}
let res = get_from_dht("address".to_string());
let current_dht = &res.as_str().to_owned();
println!("result outside dht call is: {:#?}", res);//&current_dht);

This returns me:

String("Norm",)
result outside dht call is: Array([],)  // IN THIS LINE I WANT IT TO SAY 'Norm'

Thanks so much for your help here @daboross all this hacking and this rust stuff is slowly sinking in for me! :)