Dude...it's a government project. Anyway, those in the industry will know when you're dealing with the government or MNCs you'll price your product upto 3-5 times more (10 times even) for work to be done. There are seen and unseen variables to why you want to charge high. Though I'm saying this from a non-greedy POV.

Exactly. Don't know what they are listening, seeing and understanding (or have to understand).
Anyway, back on topic is what I've been observing in the market thus far.
E-commerce can be really affordable. Even without knowledge to setup an e-commerce shop, you can pay as little as RM500-1500+/- to setup a reliable e-commerce shop with a pre-made template. The figures would be something like this:
RM 0 - Open source e-commerce software
RM 500+ - Installation/Integration of e-commerce software and design
RM 300 - Pre-made template from TemplateMonster and etc. (got cheaper but RM300 makes it more flexible)
RM 500+ per month - Payment Gateway (local)
Total there already is RM1300 with a recurring monthly cost. So like I said, +/- you can setup an e-commerce for less than RM1500. But end of the day, you
should not expect to have other funky ideas you might've seen on other websites. Because it'll only increase your setup cost - doh!
Also, instead of making the e-commerce layout totally different. Focus more on your brand (logo). The brand is what will be established between you and your customers. Open source options like Magento now have incorporated good user experience during development therefore user-friendliness of an e-commerce platform is almost guaranteed.
So invest smartly.

Yea, beside E-commerce , the SEO need professional do research for the web page and company Logo. If simple do, it call rubbish, many out side there. It really waste money and time only. Study first before do, ready capital RM8-10k in hand for E-commerce and marketing.