KITAS holder visa for wife

i should add - we are both european

Your wife's KITAS should really have been arranged by your company but nothing says they have to do it.
The price is a serious rip off as you can do it yourself a for around a million Rupiah.
I see your office is just around the corner from the main immigration office opposite Plaza Festival - just pop in and start the process.
If the lady is in the country with you at the moment, she might well have to fly out to Singapore or Malaysia to complete the process.

Tip - Take the original and copies of every document you have even if it seems like there is zero chance you'll need it.
That includes your KITAS and work permit, marriage certificate, both birth certificates, passports and so on.

Thanks Fred

Another question - is DIY as quick as using an agent?

I am aware she will have to pickup somewhere else as i did with my KITAS

Agents in the past had the power to speed up the process with 'lubrication' but immigration has cleaned up so all processes are followed by the book.
The upshot is, agents are useless most of the time unless you're very busy and can't do the running around. I also understand the applicant should now accompany the agent on every visit that requires speaking to an immigration officer, meaning their usefulness is even more limited.
If time is running out and assuming the lady entered on a non extendable free 30 day tourist visa, see if you can get a sosbud 60 day visa to give you the time you need to complete the process.
That should easily be enough.

Tip - When visiting immigration, wear long trousers and a shirt will collar or you might be refused service. A nice smile and a good attitude are essential as, even though things are very much by the book, how the officer reads that book might well change if you get stroppy.

There is a high likelihood the required forms and photocopies will change from visit to visit. Carry the original and a couple of spare photocopies of everything in a dedicated folder, and make sure you take everything to every visit, even when you don't think you'll need them.
When asked for the umteenth copy of something you didn't expect, isn't on the list of required documents and no one ever asked you for before, smile and get a copy made as quickly as possible.
That set of copies means everything for the lady and everything you gave for your application, including your degree certificate if available.