Capex, Brexit and exchange rates

Sort-of a "budgeting" question so I hope this is the right part of the forum.

I need to spend some serious money (£1,500 or more) on business equipment - new laptop and suchlike - this side of 5 April to keep my income out of the 62% personal allowance clawback band.

Lately there have been a lot of media articles about currency hedges running out and prices being bound to increase. I had been intending to leave it until January in the hope of getting the most kit for my money as I assume prices have now been put up for Christmas-present-buying season, but now I'm wondering whether that's a bad idea and I should get what I can now (especially as the recent interest rate reductions mean I can no longer get as good a return on the extra five months in the bank).

Any thoughts? I understand what currency hedging is, but I've no feel for whether it's accurate that most businesses' hedges are done on a calendar year basis and I've no feel for how long a rise in the price of purchases would take to feed through into an increased sale price.

I would be quite frustrated if I were to wait only to find that I have to pay an extra £500 for the same stuff. The fact that that's only £200 after the tax relief will not console me!