Looking at a reward flight from LHR-KTM, I can see availability both on BA and QR's sites, flying on QR metal in Business, and I have my avios in my BA account. Booking through BA would charge 130k avios + £840, QR charge the same Avios, but as I don't have any avios in my QR account, I can't see the taxes amount. Would anyone be able to check what the taxes would be when booking through Qatar on that route, if it makes a difference the dates are 8-27 Oct.

Thanks in advance!