Five Questions

[ookami]

Another hand over of questions, please don't shoot me!

1.
'Wilfrid the Gunner' ... 'Wilfrid from xxxx' ... 'Thieving Wilfrid' (labels)
How would you translate that? Wilfrid el Ladrón?

2.
'We must have a sharp look-out, that's all.'

I understand it clearly, but when translating something lacks.
~Debemos estar alertas, eso es todo.
~Debemos tener una mirada aguda, eso es todo.
The first one will be the correct for me, but I'm not using the adjetive "sharp", so I think it's not perfectly accurate. What do you think about it?
*is correct that underlined will?

3.
a- 'This is rather an awkward time to have a person with his problem in the house: ...'

How would you translate it?

4.
'... was like a cat whose newly born babies are being handed around for inspection.'
I understand it well enought, but when trying to do the translation, I'm having problems to find the exact words for handed around.

... era como un gato cuyas crías recién nacidas están siendo manoseadas/toqueteadas/siendole quitadas por inspección.

5.
Since some days ago I'm interested in finding a way of saying:
'Desde ya, muchas gracias.' in English, any idea?
something like 'Since now, thank you alot.' but this way sounds a little bland.

6.
I have decided to start learning some English grammar, but I don't know wich kind of books are good for me. Any suggestion?(titles) Or is it better to just continue learning by reading storys(exactly: one short story a day) as I'm doing now?

Thanks.