New chassis - D1 / D2 missing - any reasons?

[Talonmotorsport]

If you read my ebay listings it says 'This chassis is intended to be a starting point for a 'self build car' and will require some minor brackets and non-structural tubes adding to finish' I've never claimed to produce a complete chassis.
I don't fit the plates that hold things like the hand brake lever as not every body uses the donor parts,let alone put them in the same place. I also don't fit the engine mounts as for every 5 engines that I can name that could be used 5 more people can name another 5.
As for the chassis being short go in to any DIY store and pick up 5 different brands of tape measure and take them to the where the 8X4 sheets are, if any 2 of the tape measures come out with the same answer over 8ft I'd be very surprised.