I don't know if you've considered all your options. The 4/8 is overkill for maintaining just a few razors. I have one. I bought it when i was heavily into restoring Ebay razors. Now I just use it occasionaly. It's too much trouble and too messy for one razor.

You can avoid serious honing indefinitely by refreshing the razor with a few swipes on a finishing hone when stropping won't restore its sharpness. A barber hone, like a Swaty or a pasted strop is good enough for that. You only need the 4K to restore an edge. But as infrequently as that happens you can just send the razor out to an expert.

If you find you want to do restoration you can get the 4/8 later on. In the mean time you have less costly alternatives.