Mission Impossible? I wanna be on PAGE 1 for my keyword

Hi everybody... I've not been around the WF for a while, because I've been busy with my t-shirt business, which has included developing a new online shop to sell t-shirts.

I'm now in a fantastic position where I no longer have to make the t-shirts. This means I can concentrate all of my time on developing and marketing my website, paying a third party (my friends' t-shirt print shop) to fulfil my orders (i.e make and post the t-shirts).

I'm already making enough money to pay my rent and bills, but now I want to send the site into overdrive. I've found a very cheap/good quality printing company to print 5,000 full colour A6 flyers which I'll personally distribute around my city (Birmingham UK), as part of a "launch campaign". So there's a little bit of offline advertising going on.

I've never seen any of the top ranking competiting sites advertised on TV (not that I watch much) or in the national press (again I don't read every magazine and newspaper, so I'm not sure).

What I really want to achieve seems pretty impossible to me, but here it is. I want to reach google page one for the search terms "funny t-shirts" or even "t-shirts". The competition is absolutely huge, I know, but I have the time and a fair amount of knowledge to really get stuck in and try to achieve this goal.

The site is built in wordpress using marketheme (which I've butchered heavily). I'm restricted in many ways, for example it only allows 1 payment gateway (paypal). But I chose wordress because of its' search engine friendliness.

Here is the plan I'm currently working to:

- Write & submit unique articles (2 or 3 per day) to ezine & articles base, with backlinks containing anchor text "funny t-shirts" and "t-shirts"
- Add new content to the site each day (since it's a wordpress blog, this is nice n easy) - I write anything from restaurant reviews to reviews of t-shirts I've just added, tv show reviews, whatever really - I just create content and put it up in the hope it draws in traffic and people see that there are t-shirts available from the site as well as the article.
- Add around 15 new designs to the site each week
- Setup autoresponder (not quite sure what plan of attack to use with that one just yet).
- Lots of on-page SEO (in-linking, keywords, header tags etc)
- Contacting blog owners and asking for links
- Commenting on blog posts around the net (could do with some strategy tips for this one!)
- Sign up to forums that interest me - local issues, guitar, comedy, food etc, use signature link - this one is really tricky and time consuming!

I don't want to pay for links, I want all my online marketing efforts to be as free, just taking up my time. I can put in 9-12 hours per day, 5 days per week (basically full time hours).

Can anyone offer any advice or tips? I'm not sure if I'm allowed to post a link to the site on here, and I'm pretty sure I'm not allowed to ask those of you who keep a blog to link to my site. But if anyone has similar experience of trying to achieve this type of thing, while up against so much competition, please pipe up!