Probably just as good I am not manager but would play most of our second string in this game.
Spurs without Sarr, Bissouma (sp.) due to Afcon and hopefully still a few injured so I reckon we would still give them a good match.
After the financial turmoil earlier this year and for our long term prospects it is more important we qualify for Champions League via UEFA cup or through league. Our squad is not getting any younger and a load of cash will be needed to extend Unai's run for many years to come.
We are extremely unlikely to win FA Cup, end in top 4 or win the UEFA cup all in the same season. Our squad would be to stretched. I take great pleasure in watching Man City*, Arses, Newcastle, Chelski, Palace and Spuds knackering their squad in pursuit of the impossible dream.
I would risk being knocked out the FA Cup early and concentrating all our energies in qualifying for the Champions League next year.