Just one last try at getting you to answer the question 411a...
Do your tatty old wrecks have the nav fit to fly legally in the EU... yes or no?
Which as Kengineer-130 pointed out, is all a moot point if you don't have DAS. Many clapped out old jalopies fly to theatre every week carrying our freight, and many could take pax, but without a working DAS you just ain't going to get a look in.