De-Lid Tools in the UK - What's worth it?

Looking into de-lidding my 6700K. At the moment I'm running a 4.7GHz overclock, but I'm wondering if I can reduce voltage if I manage to also reduce temps. (It's presently requiring 1.312Vcore to be stable at 4700, and crashes under stress at 4800)

I know there are lots of options available for delidding. The Rockit88 seemed like the best choice at first, but shipping from the USA to the UK is literally as much as the cost of the tool, so I'm loathe to pay that much for something I'll likely only ever use once, and that might not even give me a huge benefit, given my mild overclock and potentially not-so-great silicon.

The De-Lid Die Mate is available from OCUK but they're having supply issues and don't have an ETA on new stocks yet, so that's also out.

eBay has plenty of 3D Printed Delidding tools around but I have no idea how safe they are. There's also always the razorblade or vice methods, but skylake in a vice is dangerous and razorblades are definitely risky too.

Are there any other options? How good are the 3D printed tools?

Update - I've ordered a Delid tool and some conductonaut from eBay.

I will be holding the entire userbase of [H] responsible for any failures

Be sure to post pics of the victim's before and after temp readings along with pics of the surgery's procedure.

Good Luck!

I researched a lot about delid tools, and finally just did it with the razor, took 15 minutes and it was quite easy.
Didn't really want to pay close to 100$ CAD including shipping and taxes for the delid+relid tool.

Full load temps are down 20 celcius, but I wasnt able to overclock it more. I have it at 4.8 with max temps of around 65c, with a low noise fan setup.
In the end, it didn't change anything and it wasn't worth it for me with that chip, as the chip is kind of limited at 4.8 no matter the temps.

Yeah I bought one of the ebay 3d printed ones. I figure it'll be easy enough to just not use it if it turns out to be a badly made tool

UPDATE:

My Conductonaut arrived second, so I did the De-lid today.

The Tool I got in the post wasn't the same kind as on the listing, it was the screw type. Whatever, I'd consider that an upgrade so I was happy.

Delid went smoothly using the tool. Didn't have a wrench so I used pliers to turn the bolt, and I got a "snap" delid, instead of a gradual movement of the spreader.

I removed the epoxy from the heatspreader using a blade but I didn't want to risk hurting the PCB so I left that alone. Reseated the heatspreader and held it down, then I used a drop of superglue on each corner of the heatspreader to hold it back on.

Temps immediately look good: