the second plan is probably closer to your ideal but with east setback narrower there would be more space inside and/or the extra 50cm x 28m of garden is available to combine with the other side or in the rear garden but i think you've added extra to the garage to make a drive through access to the rear but how would you use all that garden space on the western side??..so many options and best orientation and use of the available space will almost always be better achieved with a custom build although there's probably a builders' plan that is closer to ideal with only relatively minor changes but initial suggestion could have more useable space inside and out

I notice they all have alfrescos to the north and you don't want to waste solar access by having a north-facing alfresco under the roofline so think about an opening roof or a retractable awning or something like that.