I f you have a wood burner in your shop, you'll be able to heat for a few days with the packing crate, seriously!
I hear of guys inventorying their kits, counting all the nuts and washers and making sure they match up with the packing list. Screw that, if all the big parts are there just dive right in and get busy. Two kits from RANS, never shorted on anything, and the last kit had NOTHING back ordered, everything was there, that is super rare in the kit business.
You need a fuselage fixture and a way to hold for painting all the control surfaces and other parts. I have been using for years a 1" sq. tube tripod thingie that I can plug various mounts into, I have two of them so with the "adapters" on each I can hold the fuselage up and twirl it around to where ever I am working. Set screws/bolts secure the parts in the tripod. Other adapters for the rudder etc etc plug in the same tripod. You will more then make up in time saved the time spent in making these fixtures and adapters.
Try and resist the urge to load it up with all kinds of crap, keep it light, nothing beats lightness for good performance. All the engine mods and horsepower in the world don't help a bit when on short final. I just got a Earth X lithium battery and saved 11 lbs over the old Odyssey! I've launched and climbed out 35 times according to the logbook since, so that's a total of 385 lbs., so far, I have not had to haul aloft. That may be an unusual way to think about excess weight but true. When I see a fat person limping around like many do, I always think of how less aircraft weight is also easier on the landing gear, I do not share this thought with the fat person
