The reason I posted that link is because the quick build kit version of that plane only costs £12,000 (compared to the £29,000 base price). Thats a huge difference in price for only 190 hrs of finish work, kits usually take 1000 to 2000 hrs.

Add in the costs of workspace, tools, travel to and from the workspace, lost interest in your capital sum, buggeration factor and £29,000 is not that steep.

190 hours is optimistic in my view. You may be able to do that in a perfect world but I would triple that (from experience) as you will (and should) spend at least twenty hours just reading the manual. That only leaves you 170 hours, or 17 ten hour days. It’ll take you a day to mask it, two days to paint it, half a day to do a proper weight and balance, at least a day on the phone chasing stuff that isn’t included in the kit and that leaves twelve and a half days build time. Just getting the motor to run properly could take half of that.

To put it another way, I can build an electric guitar, from scratch using planks of wood to playing article in four days (I did it once for a bet) but since I have made hundreds and have all the tools it is not that big a deal. Making a first one will take way longer.