For $10 more on a small loop:

[Waterlogged]

Heh, I'd ask you all to enlighten me if I had any experience with a soldering iron whatsoever. That said, can someone please tell me how difficult it would be to replace the pump top with this reservoir if one had no experience doing so?

It's super easy if you can pay attention and turn a screw driver. Video link (not the same top but. it goes together the same way)

Also, the solder mod is fairly simple as it only requires a blob of sloder to be put down.