Stuart, Couple things going on here, sysprep did not complete with fails throughout both sysprep logs not pin pointing to any particular failure reason.  Also it did not capture correctly and you did send all the correct logs, but within those logs there are logs missing.  I would recommend that a new image be built from scratch on a clean hard drive with all partitions deleted, then hand install a fresh O/S, the required apps then ImageAssist and execute. 
Hi, We recently got a hold of the creators update of Windows 10 and capturing the image worked perfectly fine. We are using Latitude 7275's and 5285's.  Some background info: Looking at the logs during restore, the driver injection phase completes and no errors appear so it looks fine from that point of view but after logging in to finalize the setup (Anti-virus etc...) there are a lot of drivers missing e.g. Video. Installing it manually resolves it but seems tedious considering the driver pack option is there.  .I got both driver packs from the Dell website here and downloaded the win 10 64 bit packs.  Any thoughts on what the problem might be ?
Win 10 - WIM File restore and driver issues