Looking at buying a Tomei or an HKS one but jeez! how much! - just spent a wee wack with RHD & now suss that I need a damn good oil pump to keep the RB26DETTT well oiled (

)
surely,

, with the rb26dett engine being over a decade old, a company has manufactured 1 @ the same spec for less £?
If they have PLEASE point me in the right direction

Chilli