Selling playters to fund improvements

My current club struggle to compete with some of the bigger clubs financially and I feel like I'm always destined to finish fourth or below. I have two top drawer AML (one is better and younger) who attract a lot of attention. I figure I could cope with the loss of one of them and then use the money to improve my training facilities which are only average at present. If I sell the younger AML who is probably too good for my club then I should get at least £3.5m for him, though he is my second best player and set piece specialist. Will the board allow me to use the money to improve the training ground and youth network for that kind of money?

Perhaps some context will help...I am Larisa in the Greek Superleague. My wage budget last season was around £90k p/w and my record transfer fee received is £1.3m. The most I've ever spent on a player is £300k, I rely on getting cheap youth players and developing them. By comparison the big clubs can spend up to £25k p/w on wages for one player, and there are even sides who consistently finish below me who have much bigger spending power. My main source of revenue is probably getting in good players discarded by big clubs on frees then selling them down the line, we're not really good enough to be able to compete in Europe. I can't really think of any alternative ways of generating cash to try to close the gap, any ideas?

Another way to get more money is to arrange friendlies V big teams. You will generate a fair bit of cash if you can get them to accept. Maybe add that as a clause when your releasing your talent down the line.