Hey @HenriC long time no see!
Trust you had fun with LoRaWAN/TTN while its lasted - do you still use? (You were looking at pro use last time I saw).
Still rate the SX1301 and associated builds inc the RAK units. Had 2 of the original units die a few years back - mostly my fault I guess (I abused and used for rapid test & deploy trial set ups). Still have aro a dozen deployed in anger and generating 100’sk packets every year. I typically pick old SX1301 units (for later community deployment or loan-out) from ~£30-60 depending on build so you may be a bit high at €100. 
There is a lot of competition at €100-160 for brand new these days - and with later tech inside - 2nd hand 25-35% of new depending on build/manufacturer.
From where so those interested can judge - France or Belgium IIRC?!