coaxial line with IPEX MHF4 + RP-SMA connectors?

[LeapFrog]

I'm looking to add an external antenna for a small computer/radio, I've found this antenna cable:
https://www.ebay.com/itm/2Pcs-IPEX-...032027?hash=item4b1e11d3db:g:yO8AAOSwaLhZfGl1

My issue is that the cable is not shielded and it's not coaxial line; I've already purchased an RG-178 pigtail for RP-SMA, but has incorrect MHF end for my SBC..
(single board computer)
I believe I would need these
to use the cable I've already purchased .

Does anyone know if I can just purchase RG-178 with RP-SMA + MHF4
connectors pre-installed?
I'd like to avoid the unshielded adapter cables if possible, thank you.
(RG-316 MHF4 + RP-SMA would be of interest to me also, less loss)

 

[LeapFrog]

update: DigiKey has the cables but not w/ an MHF4 end


I may just have to make the cable, as it will be application specific.