One other thing to consider us a definition of first solo. For me, it was a complete circuit of Norwich but for others, it appears to be a hover solo.
Thomas, I've just audited your figures and I suggest you want to revise amount spent upwards! Are you looking at sales price or running cost? A single turbine is nearer £500 now with twins at £800-£1,500 per hour to fly.
Anyway, don't rub it in!
Cheers
Whirls