I would say get saving boys.
Get the Extreme 47 because not only is it the best pole ever.
It also has the potential to be the longest as it's sectional after 47ft.
It's (I think) £1,100. But the extensions are £200odd for an extra 5ft.
If you only want to go to 50ft it's the best pole on the market.
But it's kinda nice to know you're not limited either.
Say the following month a job @ 60ft came in.
On another pole you'd be thinking 'I wish I hadn't bought this 50footer'
With the extreme, you just buy 2 HS extensions and you can do it.
No brained in my eyes...
Save a bit longer or credit card it and pay it off when you get paid from the job