The kit is clearly more favorable than that of the "global Fixern" but absolutely equivalent. On the web you can find enough video with schreittweisem "how to do it", ie also for beginners it should be doable.
Before installing I had the mini-HD thus gespiegelt- on the SSD using an external USB enclosure and the Disk Utility no installation software. MS Office detects a change and asks again after the Key.
NOTE: If you want to boot from SSD and the old Paltte was mirrored on the new, so check in the System Info "About this Mac / Details to SATA" whether the SSD-specific TRIM is enabled (TRIM is YES or NO). For me it was not active because the settings were of course set by the old mechanical HD. There is a freeware to activate TRIM download from the author's side. Alternatively, the NVRAM are reset.
