Morning Neil, depends which model you have.
I have the 90 atl and I can get to it fine. First in esr in windcreen wiper puller, remove then remove washer jets, remove scuttle by pulling up out of ridge in windscreen. Unbolt 3 10mm nuts on the bulkhead and two t20 screws on top of the air intake. Just unclip the turbo to intaake pipe and pull out. Unbolt three bolts each on the asv and spacer tibe using a 5 hex Allen key. Maybe worth getting new seals if those in there are flattened.
The problem I found was the two 6mm hex bolts holding the egr feed pipe onto the bottom face of the egr are very tight and hard to get at. I used a shallow head long handled allen key. Even then you can turn 8th of a turn at a time. When bolts are out I couldn't separate the feed pipe from the egr as the feed pipe from egr cooler is rigid and held by a clamp down back of engine. If you have ramps you can get up under there and do it OK, if not then that's the end of the road normally.
Get a new crush or gasket for egr pipe too and seals for egr unit to intake.
So yes easy to get to, hard to actually remove the last hurdle!
If you have a 75 maybe they don't have this problem as the pipes are different and egr unit too. Similar layout and pre work though. It's the water cooled egr feed pipe that causes biggest issue.
View attachment 96857
Black is pipes and orange egr on an atl