Hey , Ive got a Marshall Jcm2000 DSL401 . I know that replacement valves are cheap (EL84) but how much in €'s would it cost to get the amp biased when new power tubes are bought?

Vintage ICON Peter Green Replica Les Paul
Epiphone LP Standard
Marshall JCM2000 DSL401 (New Valves )
Boss TU-2 & SD-1
EHX #1 Echo
Varies greatly per tech. Mine asked 60 euro, but he also diagnosed the entire circuitry for weak welds etc.
WTLTL 2011