I'm not a good enough fabricator to make something easily removable to still be able to change the fluid. Believe me I've looked, as soon as someone else makes it I might be able to replicated, but I haven't figure it out yet.

Same goes for rear sliders, I could make something nasty looking I'm sure for about half the price of 4x sliders, but for as nasty as it would look and my time, I'd just pay for a quality product.