Looked everywhere for a dipstick for 1990 fiat duc

REXIE

Hello out there we are first time users of any forum hope you can help or advise us. We are looking for a dipstick for our Fiat Ducato 1990 H reg 2.5 diesel. We can not believe how hard it is to find one .The blade on the end of ours broke off,.. never to
be seen again ... We have tried every search engine we could find but to no avail.Even thought about making one but need the measurements to find the oil level.at the moment it's just guess work which can be detrimental to the engine.Fingers crossed that some
nice person out there will have the answer thankyou for your time in anticipation