I'd argue that Dweomerkeeper is pretty easy for entry on the divine side. 8 ranks in a couple of skills that are pretty useful, ability to cast arcane and divine (can be done via a feat if you're level-starved afaik) and one of your domains need to be magic, and you must have made a magic item, which doesn't necessarily mean you have the feat to do it- you can participate in someone else's crafting by supplying the spells for it.

The only sticking point for clerics from what I can see is choosing a god who has Magic as one of their domains or could be considered to have it as a minor domain, or accessing extra domains somehow. ... would chugging a domain draught before levelling count? Kind of a fun idea that- a cleri-wizard who is chemically dependant on this one rare magic moonshine or they lose their Dweomerkeeper powers.