Deciding between rebuilding or replacing - struggling with indecision

[SD1too]

Greetings everyone, I need immediate guidance.
My 2012 C-Class petrol vehicle has incurred damage as a result of the absence of oil pressure. Preliminary examinations indicate that the intake camshaft has sustained some impairments (although the exhaust camshaft seems to be unaffected), and there is also some damage to the crankshaft.
The engine operates with the same level of performance as when it was driven to the garage, but emits a noise reminiscent of a diesel engine from the 1980s.
Should we go for rebuilding or replacing?
I have received a quotation to substitute an engine with a 68k engine at a cost of £3,750.
The process of rebuilding seems to exhibit significant variation, but, it is understandable that the extent of further damage cannot be determined until further examination is conducted. The price range for the initial cost is between £2,000 and £2,500. It is worth noting that some individuals may incur this amount as their final bill, while others may exceed the cost of replacement.

What is your opinion? I am perplexed while I deliberate on the optimal course of action. Any assistance or advice would be much appreciated.
Situated in southwest London, assuming it has any bearing on the guidance.

[another_clean_sheet]

What is the purpose of doing either?....unless the automobile has really low mileage or has significant personal value, there are other vehicles available in that age range for less than £4k....

[BENZE220AMG]

What was the reason of the lack of oil pressure? Is the oil pressure switch malfunctioning?
 

[mrnobady]

The primary factor leading to this issue is oil depletion. While it is preferable that this is not the case, if the engine is already producing banging sounds, it is quite likely that it has suffered significant damage. If the original poster lacks the necessary expertise and money to dismantle, examine, and reconstruct the engine, it seems to be the most viable option to either replace the engine or dispose of the automobile entirely.

[Rudy7831]

Dispose of the damaged automobile and purchase an intact gasoline-powered vehicle that is in good running condition, has a valid MOT for an extended period, and has a complete and continuous service history without any periods of being unlicensed or off the road. It is preferable for the vehicle to have had fewer previous owners. Ensure that the colour is not red and verify whether the rear subframe has been replaced.

[vitessear3]

Based on the events that have occurred, it seems imprudent to invest in hiring someone to repair the engine since it seems to be a source of potential complications.

The cost of £3750 for a new engine may not be seen as a good bargain. However, if the automobile is extraordinary in all other aspects, it may be justifiable.

In my opinion, the most favourable course of action would be to sell the car in its current condition, specifically for spare parts or repairs, and use the resulting funds, together with an additional £3/4k, to purchase a replacement vehicle.

[torque2me]

My suggestion would be to get anything you can from it in its current condition and purchase a replacement.

Undertaking such a substantial task is not without its hazards, so just enjoy the experience of purchasing a new one.

[KWILB]

It is worthless. The repairs exceed the estimated cost and budget, causing lingering concerns about unresolved further problems.

In today's day, there is a significant value in salvaging materials, since several components may be effectively resold.

[BENZE220AMG]

Indeed, but, if it were my automobile, I would be eager to ascertain the root reason of the absence of oil pressure.

[mrnobady]

I understand and concur. The main point I was attempting to convey, if not very well, is that a malfunctioning oil pressure switch does not result in decreased oil pressure.