Actually I'm considering the 4age as well. I would love to put a 1jz or a 2zzge in it but it's just not in my budget to spend over 100 grand on an engine. I can maybe try to find a 1jz with a single turbo, seen some around the forum going for around 60kish. Can you find 12a rotary engine easy or nah?
EDIT: ok maybe a 1zzfe apparently cost 110k for engine and swap combined