Remote start is a flawed system, if it doesnt have code hopping you can use it to start and drive away the car, supposedly you can also use the wiring to do so.
Chris Rogers would be the best person to ask, he will refer you to a good guy or infact himself (yes he is a guru, your in good hands)
The paging system is great, hope it has 3 stage imobilisation and black wiring otherwise your insurance is void.
Sorry to smash your hopes but there is alot of other good options which do similar things.