Manual swapping car

"My question is, who do I need to contact to say the car has been swapped or do I even bother. A few people I've talked to said to just swap it and say nothing, but id like to not have my insurance cancelled if they ever found out."

You should make an appointment with an NCT Centre to let them know that you have made modifications to the car because that is what this is. It will be a modification.

My only advice on it is bring as much paper work as possible, bring the vehicle CoC and logbook if you have them and receipts for the work done. You will need yo have the vehicle information updated on the NCR site or Revenue to say it is no longer on auto but is a manual. Sounds like a lot of work to me. Why not just sell it and get a manual one?

Can't help feeling that what you're going to attempt has "world of pain" stamped all over it. Not legally, it's a conversion not a modification - just declare it & not mechanically if you have a donor. The problem really starts when you've enough time put in to it to discover that it has different engine codes & ECUs,wiring looms etc doesn't match. You need to do a lot of research there before you commit yourself.

If the end goal with the car is to further modify it and also have it making more power (however in depth ya go with that) then ya the manual swap would be worthwhile. Clearly this is on your mind since you've a donor car already.

If going at it yourself there's a world of info online and ai is actually quite good on summarising this.

Asking on the autostadt FB page for mechanic recommendations would be a good move. Far better off with someone who's well used to still working on MK4 platform cars if going the mechanic route. Also a great place to ask for help on any issues ya might encounter.

However if the end goal is to have the car clean and original for driving about the odd time then I'd not bother if the auto box is still working sound.