How can one plan and execute an IFR trip without using any resourse which is provided even in a small way through the money from navigation charges.
Planning: Jeppesen / Aerad manuals for route (subscription service). Avbrief (subscription service) for weather and NOTAMs.
In flight: ATIS En-rte and Arrival airfield.
None of which are supplied by any navigation charges funding - you pay the third party supplier directly.
If this was ATC saying that they would only provide a LARS service to those who pay then the outcry would be deafening.
I suggest you go back and read my comments on LARS provision a few posts back.
(Never fight a pig in s**t - after a while you discover the pig enjoys it
)