Not dual valve springs-single h/d springs will be enough.
Pushrods- Standard aluminium should be ok in terms of strength- geometry can be adjusted by spacers under the rocker shafts.
Heads- vw standard 1600 heads- with light porting.
Standard oil pump
Deep sump is for high G load either cornering, braking or acceleration so really depends on driving style. This engine will not generate sufficiently high G loading on acceleration.
Pushrods- Standard aluminium should be ok in terms of strength- geometry can be adjusted by spacers under the rocker shafts.
Heads- vw standard 1600 heads- with light porting.
Standard oil pump
Deep sump is for high G load either cornering, braking or acceleration so really depends on driving style. This engine will not generate sufficiently high G loading on acceleration.