Property ready to start but where do you begin?

[Jared Van Horn]

So I am 30 years old and have flipped 4 houses so far. My goal is rentals but I wanted to make some cash from flipping to start. After my 3rd flip, I bought an acre piece of property that is flat and zoned multi family. I got an engineer to design the property to figure out what I could fit on it. We ended up being able to fit 6 duplexes on the lot for a total of 12 units. each unit is roughly 1400 square ft 3 bed 2.5 bath with single garage on each.  The city has approved it and it is ready to go. Rents would be around the $1800 mark give or take a little. All in I'm at $100,000 for the lot and all the engineering and approval ready to go which i feel like is pretty good for 12 units.  This is where my progress has halted.  Building materials are high right now so I'd imagine building cost would be around the $200 per square ft range. If you add all the units up its 16,800 sq ft. Ball park estimate is over 3 million to build all these units off my numbers. I could have roughly 200k down for this but I don't know what to do next or if it would even pencil out. Are my numbers way off? would I be better off selling this lot and starting smaller? I may be able to start by only building 2 units first but city didn't seem to keen on that since they aren't all on individual lots.  Lot is located in southern Oregon and the town is in need of rentals.  Just curious on peoples thoughts on this on how to proceed or what they would recommend. Picture is of the lot with the 12 units approved by the city. Thanks. Jared