It is 1; crafted illuminations don't affect your mote pool in any way, you have (evoker level x 2) motes every turn (though some of them might be binded into your costume of soulforge feats, but that's a differemt ussie entirely)

On the second point, it is one each: One shape, no more than one Foundation and as many Secondaris as you want and can afford with the limitation of (total cost <= evoker level)

Glad to help!