1. Opinion - the pump filter is there for a reason.
2. Anecdote - I had a 280SEL for a time with a tank in poor condition. I had it cleaned and coated and continued to have problems with fuel starvation. What I found was that the tank strainer was OK, but the pump filter was clogged.
If you have a new tank, you will probably be OK for a while. But I suggest that you look for a used pump, condition unimportant, and use the inlet filter and fitting out of that. You could also install an inline filter between the tank and the pump.