Have you had tough times sourcing your raw materials for construction? I'm finding it tougher/expensive at least in New Jersey.
The flip side of that is that the sawmills will take absolutely garbage logs in and saw them out these days. My father has taken up logging again pretty much full-time since he retired (he loves cutting trees, but you can't do it as anything but a hobby unless you're fully mechanized these days), and he's just astounded at what they'll grade logs out as. Stuff he used to have trouble getting accepted as pulpwood they're taking as saw logs and sometimes even veneer.
i think the appeal of Ikea as stock is that its already cut down and comes with fasteners/brackets/etc. but you can come out ahead and have considerably more design flexibility if you know how to shop.
i built maybe 60' in shelving for my bedroom. light steel frame, inset reclaimed pine flooring. the whole thing was probably $50 in materials. and when i leave it on the street when i move out, someone is likely going to want to take it its not going to look like an old cardboard box.