eshopNewbie
What products and number of products are you planning on selling? You seem to be going to a lot of hassle trying to find different do-it-yourself solutions, all of which are just currently stopping you from getting on with the important thing - getting up and running and trading.
In all honesty, if you don't have the experience and understanding of these packages on the DIY route then please take it from some of us who've been there and done that and don't waste precious time and money (because every hour you spend on this is money lost where you could be up and trading) trying to find the perfect DIY soloution.
The reason there are skilled hosted solution people out there who are resellers of the various or own custom products & web designers, is because trying to cobble together something has a whole myriad of issues, not least of which is protecting customer details, card security and protection from hackers and these things need a greater level of understanding than just adding a cart system.
Not every hosted solution ties you into a long term contract, and whilst there is a set up cost involved, this does at least mean you have a shop up and running very quickly without the stress and hassle of DIY.
If you need a level of hand-holding and business support some providers also can do this, for example my website is hosted with
Internet Retailer they help shopkeepers find suppliers, trade shows, and have other added value services available for when you know you business works and you can afford to spend some money - such as press releases, link campaigns, customised logo design etc.
I started out on the standard shop design layout, which essentially looked like this
http://www.teedoff.co.uk/ or this
http://www.handbagshop.tv/, it's a well optimised design, customers love it cos it's clean and clear and I stormed up google extremely quickly. The admin functionality is great and it's easy to understand and use.
I did notice from the offers page that there is currently an offer on for UKBF members so for £49.95 (instead of the usual £79.95 I paid) you could have a ready made shop up and running in a matter of days, you do then have a monthly fee of £29.95, but you get 2 weeks free initially so that you can see if it works for you, and there is no fixed contract so you can cancel at anytime if you wanted.
Admittedly it's not as cheap as the systems you've looked at, but as they say you get what you pay for, and the DIY route is more likely to lead to a site which you rapidly outgrow if your business takes off in the way you really want.