Thanks for getting back to us. I found a resource scanner as part of the Octosat. So i should be ok to use that if i want to before i unlock the other one.
What are the current incompatabilities with Kerbalism? I have it installed with GPTT and so far have had no issues except you don't seem to need nitrogen to stay pressurised. Everything else seems to work so far. Food and drink, science, radiation. The UI with all the ship, kerbal and science data seems to be working fine.