Endportalframe crafting in survival

My 7yo Son thinks we need a craftable endportalframe in survival. It could be crafted with 3 endstones, 3 echo shards and another 3 endstones. (He drew a picture, i'll attach it if possible). This would make it possible to build an endportal in your Main Base once you've been to the end and reduce annoying traveltime between your base and the endportal while exploring the end