JoJoe that seems a bit expensive for six panels. The going rate up here in central scotland is £6500 for a 4Kw system. 6 panels would give circa 2.1 Kw system.
There are ways round it but solar panels are always best in even numbers (things may have changed as im a bit out of the loop) so 8 No. 350 watt panels would give you 2.8Kw system.
These are saome costs i found online.
The only person who got all his work done by Friday was Robinson Crusoe.
Anything i post over three lines long please assume it is an article lol.