yes you may have seen an article in LRM (June issue 2012)
i fitted both the inlet and exhaust manifold from a 300tdi, the 300 exhaust manifold is cast integral with the turbo housing included (make sure you get the 300 oil lines with it as they're a different length to the 200 ones), you'll also want a few longer studs to fit the 300 components, no need to buy them as the bellhousing studs are the correct length to do that job, just swap them for the manifold studs as the length isn't needed to bolt the gearbox up
personally the only experience i've had of a de-turbo'd 200tdi is following one on the M5 (apart from when my pipe blew off) whilst in my 88" 200tdi, we hit a long incline and his speed dropped off with plenty of smoke (not massive clouds but more than mine puts out), i didn't alter my accellerator pedal position and reeled him in with ease, i had to lift off as we were travelling together and i could have left him for dead on the hills if i hadn't.
mine is very slightly tweaked on the injector pump and only a truck cab with 3/4 tilt whereas his is a station wagon complete with full size roof rack carrying 4 jerry cans, a roof tent and 4 big spotlights so his does have a bit more drag than mine (i think) and is obviously heavier.
i've had a disco on a towing dolly behind my 88" on a couple of occasions, the one time i had to drag it up Hatton Hill (look up Hatton Locks), 2.5 ton behind me, power on hard in third gear (possibly with overdrive engaged) and accellerating all the way up the hill, i had to ease off for the corners as you get to the top, no idea of the speed i was doing but do remember i also have 3.54 diffs and 7.50 tyres on it which gives you a near as dammit 30% increase in true speed over what a swb speedo will read .
i do like the power of the complete 200tdi
p.s.
i don't get the simplicity thing that folks keep mentioning (referring to the removal of the turbo) as you still have to either make or buy an exhaust to suit (even if it's just a downpipe and flange), the only thing that "may" require a little thought when keeping the engine complete is where to put the intercooler, which really isn't rocket science as these conversions have been carried out by everyone and his aunt Fanny and an awful lot of them have been documented on the web where with a little searching they can be found, i dunno
my next possible conversion/modification will be on my 88" bitsa, i'm thinking of adding a "longstick" LT77 and LT230, possibly modified to part time 4x4, i've a gearbox sat on the floor that i keep looking at and just need to decide which LT230 to source, it could be fun