Tbh clifford make alot of the cheaper kits out there so dont just go for the brand. Ring Sound in Motion and they'll talk you thu the options and prices 028 7181 4959
I did price cat1 and cat2 alarms with car audio centre, yet to get one fitted but did say around £250 for cat1 and the cat2 isn't much cheaper as there is still as much wiring to be done.
Got the Hornet Maxx1 fitted and am very happy with the result. Also got my boot vinyl and gsi sticker fitted at work the other day as the guy who owned her before thought it would look better of? So got that done and took the wheels of, painted the drums and calipers then washed behind the wheels,de-tared and polished them. After all that I gave it an oil change, k&n replacement filter and fuel filter. Then power hosed and lacquered the engine bay and finshed her off with a full valet and supaguard. It helps when you can do this on your own,cuts down on labour charges lol!