Purchase of Renault Master (2007) with 330’000

Dear car friends and connoisseurs, because I want to realize my dream of a driving home soon and I plan to rebuild a box van, I wanted to get your opinion and advice about what I should perhaps consider as an absolute newcomer. At the moment I have a Renault Master (L2H2, built in 2007) in view and wanted to ask if this listens to a good idea and what I should pay attention to in this model in general. second hand, was previously used as a company car (dachdecker) and in the last 9 years held in fire in the local contract workshop. He just got new in February for 2 years TÜV, however, has already 330’000 km down. Recently after a transmission damage the transmission was replaced by a overhauled one, on which I would get 1 year warranty. A few bumps and scratches are also on top of it. Cost should be the good piece 3000€. What do you think, is worth the purchase and what should I perhaps pay special attention to or what could be coming to me in the near future? Would I be very happy about every advice and hint!