Technically, it with your hours, it should be OK, but -
CIC doesn't actually say this, so this is just my opinion - your Letter of Employment should not be dated BEFORE you complete the work experience requirement. It is a key piece of documentation, and it should be attesting to the completed work experience - If the Letter is dated before you actually complete the required work experience, then, it's not really proof of the qualifying experience. OK, I suppose some employers will post-date the letter, and it is possible to get the Letter one day after, and send it the same day, but...
Anyway - I understand wanting to get it in as soon as humanly possible (some people actually need to because of expiring police clearances, work experience that may be "expiring etc.) but some people who have done so have ended up regretting it... If you do it, you'd better be 100% sure that everything is spot-on
