MX-5 NA for 2.90€

Good evening! I apologize in advance, if the text is a little longer, but I am VERY grateful for the answers! I am 19 years old from tomorrow and trained car salesman in the first year of my apprenticeship and therefore have no technical knowledge and experience, but would very much like to acquire some, because it is my dream to work as a hobby on my own car. Since I have been enthusiastic about the MX-5 of the first generation for a long time, I have decided now to Whether my decision is reasonable or unreasonable, let’s put it that way. What I wanted to ask, however, is whether it is even possible to buy a initially carelessly mobile MX-5 NA for a maximum of €3,000, without falling into a cost trap. I had a MX-5 NA in which I was potentially interested (2,90€) at our company on stage to have a workshop master look over it. It turned out that the fresh “TÜVV” ” probably had to have been approved via questionable connections, since the car could never have been given serious TÜV and needed some repairs in order to be safe on the road (workshop master spoke of defective coupling rods, porous brake hoses, various seals which would have to be changed urgently, a strongly damp engine block, light rust on the badly repainted sleepers, presumably remains of the catalyst in the rattled exhaust tank This really showed me what all the costs could be if you would buy a NA without any idea and blind. Nevertheless, on Saturday I have 2 viewing appointments and no expert to take away. The one is red with fabric seats (looks so far ok), has a repaired accident damage, but TÜV until 08/2020, the other is british racing green, has a well-preserved beige leather equipment, no TÜV and the clutch is at the wear limit, but a new timing belt and both are at first sight really good for the pictures (the green one is even better than the red one, each about 3,000€ and about 160,000 km on the clock). Wouldn’t like to bother at all now with further details and stories, but wanted to ask if I can roughly determine whether I’m being fooled, or if the purchase of one of the mentioned MX-5 is worthwhile, without already private insolvency anme What do I have to pay special attention to, apart from the typical rust on the thresholdrs and wheel runs (both of which are supposedly free…)? Thank you for taking the time to read my extensive question and in advance already thank you for every answer!!