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Peco LK-56 Inspection Pit
https://peco-uk.com/products/inspection-pit2?_pos=1&_sid=375e26851&_ss=r&variant=7435647909922
Knightwing fuel point (limited availability from Peters spares)
https://www.petersspares.com/p/knightwing-a48-diesel-fuel-points-angled-roof-type-base-45-x1-inches-pk2-whitemetal-kit-n-gauge