I just picked up a HK 45CT, in the V3 - decock, no safety.

I'd like to set it up as a V1 - decock, with up for safety

What parts do I need?

I assume a V1 detent plate, such as this one:

https://www.hkparts.net/shop/pc/Detent-Plate-For-HK45-HK45C-Variant-1-2-424p1807.htm

Anyone know the difference between that one, and this detent plate:

https://www.hkparts.net/shop/pc/Detent-Plate-For-V1-V2-USP-USPC-HK45-HK45C-424p1171.htm

Is the first one just for the HK45 series, while the second one is for the HK45 series as well as the USP series?  Any recommendation on which one to get?  I'd lean towards the HK45 only one as I'd figure it was more designed for the HK and not a carry over part from the USP series.

And do I need a new safety lever. like this one?
https://www.hkparts.net/shop/pc/Safety-Lever-Left-Side-HK45-HK45C-424p1770.htm

Do you have to use a different safety lever for V1, or does it just have the S/F markings on it?  Either way I'll get it.

Any other parts to get?

How's the install - an Infantry level skill?  I'd downloaded a couple of YouTube videos but haven't watched them yet.

Thanks.

I have a V1 detent I'll trade you for the V3.
It's an easy swap.
No you don't need the switch marked SF, but I'll trade you that too if interested.

Saw this just now, and already bought a new part.

I have the V3 now - I'll send it to you for free if you still need one.  

If you want to swap selectors that would be great too.