I know that set up a complex theme could be a hard task.
But there are several ways to simplify this tasks and I can't understand why people pay for a copy of a free theme when having free themes that are much better (including the original in this case)
I repeat, Lambda is just a nice Essential styles. That's all.
If you use other commercial themes (there are some really good) that add new features then that's fine. You can choose whatever you want but pay for a copy is a waste of money IMHO
Probably spend some hours to get this style is less than the price you pay for the theme and set up, because it needs set up anyway. Then create a template and add the template to the custom CSS.
Like any document template, first is really hard. Next are easier. After ten sites, create a new theme will take a few minutes.