Eindhoven is essentially a military base. They're not interested in handling light GA, hence the outrageous prices. And indeed they stopped supplying avgas a year or two ago, so the local aeroclub had to get their own installation. You could try to get handling through the local aeroclub "EACm" as jkveenstra said. If you can't get in touch, let me know. I know a few members there and might be able to get you in touch. (Won't be able to do miracles though...)
Alternatively, Budel EHBD is just round the corner and much cheaper. It's a bit more in the middle of nowhere though, with less public transport options or possibility car rental.
A bit further away, Rotterdam EHRD? If you get handling through the flying club it won't break the bank - I think the club charges 25 euros handling if you have no connection with the club whatsoever. Half an hour by bus to the railway station, another half hour or so by train and you're in Eindhoven too.
(Although coming Monday afternoon the club at Rotterdam is closed. One of the aircraft engineers died in a car crash last weekend and the funeral is Monday afternoon.
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