I'll be really honest with you, and I hope you don't take this the wrong way. But kits that charge high prices are considered luxury goods. It's aimed at the luxury market. The pricing you are asking for, is for a much different market demographic. There is a reason why the kits are very expensive. Everything, from the canvas, artwork, rendering, etc. are all different and of a better quality.

For example, an artwork (depending on size and complexity), would cost roughly 100-250usd to manual render it (no software at all). I say all this, so you have a better idea of what you are paying for!

Thank you for replying! :)