well honestly you got 90% of it.. do a tdi-e swap.. aka block/head.. e pump and electronics... reuse your intake/turbo set up.. coolent so on.. the first of the tdis are same as aaz..
i actually said long block as aaz block no work... so would expect tdi pistons... but pan, turbo,m intake all bolt on same exact.. so little wiring and your set... this is why i suggest b3 for idi/tdi-m swaps... and if the shell is newer then 97.. has to be electric.. cali tests 98 and up diesels and stare test the rest... i use them as a basis as if thats how they are.. no one can be worse... now in cali if you carb it as a diesel, as long as the engine is older then 98 and the shell they tend to miss tdi-electric... still get stare test.. but if you told them the tdi is newer then 98.. you will get e test.. from that day forward... makes it hard on us gas to diesel swap persons... but 97 and older what ever ya want... 98 newer.. standards on diesels sold on that day... need piss filter.. better have it... why its cheaper to buy vs build newer stuff... sadly only 2 b5 tdi passats made it here... and the 2.0 pd junk they sold here in 04+ is well junk... so in theory.. no good passat diesel option ever after the b4..