Hello and greetings from Finland.
With my friend we are repowering and fixing old hovercraft, and the new thrust motor will be a VAG 2.0 TDI from (Seat Exeo, CAGA). We need some reconfigurations on the programming of the ECU and I am investigating wether to learn ecu mapping and handling myself, just learn flashing and buy files ready modified from someone, or just lay many €€€ for commercial chipotuning operation for everything...
There might be youtube channel coming from the hovercraft project, and situation with the motor side of things is more explained here https://www.vwvortex.com/threads/caga-2-0-tdi-105kw-from-car-to-hovercraft-conversion.9495815/