alarm/keyless entry advice? Options

[mitchy]

hey,

so when I bought my car the alarm was disabled. I've checked everywhere the alarm box could be but I cannot find it, also the remote is effed and toyota tells me it will cost around $120!!
So anyway I want to either buy a remote/keyless kit to hook up to the central locking i already have so i can just have remote central locking. will this work and will it connect to the actuators?
I found this - keyless unit

On ebay I have also found alarms for around the same price, what are your thoughts on these? and again will they work with the celica central locking?

alarm 1

alarm 2

alarm 3

as you can probly tell my budget is "as little as possible" but im really just wanting remote but if the alarms would fit i gues they wud be better

thanaks in advance

[mitchy]

no there is nothing there. i've checked under both seats and in behind the headunit and everywhere i can think of. also the remote which has a "lock/unlock" button and a "panic" button doesnt work and im not paying for a new 1 or 2 when i can buy one of these. my brother bought a cheap remote central locking kit for his hilux (came with actuators) but i wont need them will i?