I won't offer you advice on how to run the water or sewer or culvert etc. My advice, since you mentioned a wood burner, and that you are planning on living on the property until your house is built, is to plan to remove those tress in the area first. Cut them as soon as you have an idea, quarter them and stack em for firewood. It takes time for the trees to dry enough to burn well. I would also tell you that wherever you plan to build a house and polebuilding, go ahead and remove all that topsoil and pile it up away from the area. If your house and pole building are goin to be near each other, I would just remove all that topsoil as soon as possible (or close to the beginning of construction) It will break down nice after a year or two. Don't worry if you see weed trees growing out of the top of it. pull the weeds and toss the soil around a bit in the pile. Once any work starts, that topsoil will get ruined or torn up and displaced at least 75 feet around any decent sized project. I would also advise you, since you are on a budget, to start stockpiling doors, windows, toilets, sinks, etc that you find on sale/clearance/craigslist/contractor remodels/ebay. I did this and saved a boatload of money on my addition. Think about buying other things now to spread your costs out. You wil be surprised how much you will spend on something as small as receptacles and light switches and their respective plates. I have a double bowl insulated brushed nickel undermount kitchen sink in my house that came off craigslist that I got for about half the price (it was new in the box). I had to let it sit for a year until it was used. The seller bought it and then changed their mind about their decor. Copper is up right now, so if you can, wait for wiring prices to drop and buy it then. Same thing with PVC pipe, it tends to fluctuate with oil prices. I know this because the pipes I bought (didn't plan ahead) were a fraction of the price a year later. Think frugal, not cheap. Cheap stuff is cheap for a reason. All my windows and doors were new, but I didn't pay new prices. It will take time, but work within your future houseplan.
If you are going to do business with a big box store, talk to a manager first. Many times they will cut you deals if you buy everything from them. I saved my buddy about 12% by talking to a big box store manager for him. they want your business.
My last piece of advice is not to buy plumbing fixtures at the local box store, they tend to sell inferior pieces at just about the same price you can get a good one at a plumbing supply place (and with much better valves). Weigh carefully the advantages of PEX vs. copper and make a decision before you begin.
good luck, you are travelling down a bumpy road that you will remember for the rest of your life.