It is doable, just a bit harder. I checked the NOC listing now at http://www23.hrdc-drhc.gc.ca/2001/e/generic/welcome.shtml and it comes back as
7452 Material Handlers
operator, forklift truck
operator, forklift
forklift truck operator
forklift operator
Or
1472 Storekeepers and Parts Clerks
ship storeman/woman
storeman/woman
tool room storeman/woman
The way this NOC code for jobs works is that the 2nd digit of the 4 digit number tells you the skill level. Skilled positions would have 0, 1 or 2 as the 2nd digit and your jobs have a 4 which is not classified as skilled. Possibly semi-skilled. AB and BC have some semi-skilled jobs in their provincial nominee programs but not these two so you are out of luck with that.
On the other hand, Alberta PNP has listed as seen at http://www.albertacanada.com/immigration/media/IA-PNP_eligible_manufacturing_occs.pdf NOC code 1474, purchasing and inventory clerks. Could you to that? Or something else on that list? Doing an apprenticeship to become an electrician or carpenter just so you can immigrate to Canada is absolutely doable but it seems like the long way around for you.
That said, if you did classify as a skilled worker, you would have more immigration options.
And of course like I said before, just because Alberta lists 1474 and other professions in their PNP doesn't mean that other provinces do, so if you get a job under NOC code 1474 but not in Alberta, you would classify as low skilled and have to go home after 2 years. In Alberta you would have the right to apply for permanent residency. You can read other requirements at http://www.albertacanada.com/immigration/immigrate/manufacturing.html
When you are coming on a work permit, you normally don't have to have a lot of cash. Just to survive until you get paid and a ticket home. When you are a low skilled, they even make the employer responsible for taking care of you.