Handling agents, #100 fees; seems a foreign concept to me.You need customs entry to schengen, Maybe go to Le Touquet and buy a 'Delage' guide, or just use Abbeville for cheap easy customs.
Delage will show all you need to find French aerodromes, near hotels/resturants etc.
Once you are in Schengen you still need a flight plan to cross borders but there are hundreds of small aerodromes open to you. As for Paris, why go to Bourget or 'deGaule' they don't want you; there are dozens of small aerodromes and low level routes around Paris. St Cyr might suit.
In Holland, Seppe is easy, Belgium eg Wevelgem, all have food and hotels within walking distance.