Hi, welcome to TSI.
Is there literally just one line from the panel for all sensors?
In my experience with iD systems, there is rarely just the one massive chain but maybe 1 or 2 smaller ones, just for convenience, even if they are commonned at the panel.
IF thats the case on a domestic, and provided there are enough cores, you can often just use the same wiring with shared power and 2 wire EOL at the detector. Or at worst minimise the
amount of wireless components. Remember, a wireless alarm will need regular battery changes - I always avoid wireless where it can be avoided
Also, if you really mean Risco, this isn't the iD biscuit system, this would (in my more limited experience) surely be the Risco Bus system, which is fairly unpopular but I think still current?