Create an ASP-based CMS for my HTML site

I have built a nice site using HTML/CSS/JS/jQuery. Site has launched and is now running on client's MS server. Need to now automate the content portions of the site. About 9 pages plus 2 sliders and 1 text-based Events system (a drop down select that takes user to a predetermined page - I can provide full explanation for this). CMS style can be simple -- literally changing text without formatting, or with simple formatting like bold/ital/underline only. Client is happy with the CSS, so really just need to be able to change out the text. There are a lot of videos on the site. Just want boxes to be able to point videos to new videos or add a new one. Nothing too complicated. Am open to either custom work or an existing ASP CMS, however, if using an existing product, would need to be either brandable or white label. Please give your best price for setting up the CMS and getting these 12 items into it. Thanks!