Another SL R129

I’m thinking hard if I don’t get a R129 again. Had a 300SL-24 year from January 2001 to September 2005 and was absolutely satisfied with the car. Because of more space (hobby) I bought a CLK320 year 2000. Is really a great thing but it’s not a SL. Now I’m thinking if I should not get another SL in the spring. Now I think about a 320 or maybe even a 500er someone had already both vehicles. and can say the difference in maintenance is really so big. I really don’t know at the moment how and what I should do would be grateful for a few helpful tips.