hi, could anyone pls help me?

i plan to send a electrical appliances for kitchen use from UK to Malaysia,
same model and same kind, same thing

3 units x 30 pounds each = 90 pounds
(it will be about RM 450 NOT including postage)

will I be taxed?
should i send them separately or it is ok to send together?
do i need SIRIM AP?

the shipping is already very high, so i need to consider the other possible charges