I hope you're right. I was thinking devs said somewhere it would take time and effort but couldn't find it. Feb 14th Q&A only mentioned 3 parts would be combined into a 'mech.
At 16:15 mark of the final Q&A, Mitch said we have to kit out the new mech but didn't mention anything about having to spend time putting the parts together. Cohh's version is even more generous giving player a fully kitted with default gear.
There will be a lot of json file digging before I start I tell you. =(