That looks a complete mess, cf. my C: status flags with your current Windows drive K:
Whilst your system can be repaired, it requires an expert to provide the rather complicated list of steps (and checks) to restore your PC to something suitable to be upgraded to W10. That's me out, I've been sticking with the KISS principles for disk management for the last 15 years.
I'd go the clean install route with W7, only the SSD installed, check that TRIM is active after updating Windows (WU might install an 'upgraded' driver that 'blocks' Trim - W10 did it to me after the AU Update - rolling back the drivers to the default W7/10 version will reactivate Trim), upgrade to W10 and then re-attach your HDDs and get it setup to your liking. Don't forget to create clones/backups before any major upgrade or change.
W7 can be installed on a single partition; as my C: shows, W10 requires, I think, 3x partitions; you'll need to make allowances for that according to the current recommendations during the W7 install, which would then likely make use of 2x partitions with unallocated space left for the W10 upgrade 'hidden data' partition.