With the annual UK subscription for all the charts that an IMC rating holder can use legally at IRO €500 (€400 for the renewal) it would seem that you are working very hard to save the cost of 2 or maybe 3 hours flying and with an electronic subscription soon to be available at IRO €180 your argument rather falls apart.
Until recently I would print the charts I needed and bin them at the end of the flight using the a Jeppview system, that was until the latest Jepp app for the iPad.
My flight documentation for a european trip at use time was 15Lb of books a computer and a small printer, now it is an iPad and a few charts.