Your going to struggle to get Pillansii.Aloe dichotoma and Plicatilis grow very easily from seed.Maybe you should think of ordering seed from here in South Africa.There are two very good "seed nurseries" whom I frequently buy good quality seed from.Aloe pillansii is endangered ,so I dont know if it would be legal to send you a plant.But it is beautiful.If you like the trees aloes also think about Aloe ramossisima,but Plicatilis is by far my favourite.