the following kit might be something?
iFixit Pro Tech Toolkit (Tools, Various)
[https://store.ifixit.de/products...
Concerning spatula. If you want to apply the thermal paste by spreading it, sometimes just a blob in the middle is enough and the stuff spreads itself. Simply take an old plastic card that you no longer need. If necessary, cut it to size. Looking for an extra set that contains something like that or even buying it separately, well.
Otherwise just iFixit plastic cards (tools, miscellaneous)