Thank you, i found a "good" shape 5000, missing middle glass door, side table and it's unused by 10 years circa. The price is not the best, he would like to have 150€ and, imho, eventually could drop 120€.
So making some calc, with new manifold, grates, flavorizer bars, gas tube with connectors and quality rebuild material (wood/paint) i will easily outmatch 600€.
Restoration work is not a problem, i had some time with sand blasting and high temperature painting (and painting in general).
That why i'm asking for a paragon with a new genesis/spirit, because i could add another 400 and get brand new 3/4 burner. I will mostly smoking and grilling steaks