Helo to all Bongo owners

My Mazda with 2,5TD / WL-T engine went to hot on the way to Bratislava, water pump bearing-seal seized. The head is back from engineering shop, new water pump fit, new gasket set is there but my Mazda still sleeps because lack of any info what is proper torque to tighten cylinder head bolts. I spend few days on the net no luck, for petrol engines no problem. Local Mazda workshops won't help - bring the car we'll fix it. Another issue is: do I have to replaced old cylinder head bolts and use new ?
I'll be grateful if anybody can help to drive my Mazda back home.
Thx