25k Max is very optimistic imo....Even if you do it all in the states for example at £19,999 (Riverside charge this, not including flights, test fees, accomodation, MCC etc etc)...
With all the extra costs, you will easily spend another 10-15k IMO - all your prices are based in minimum training requirements....if you budget 25k max, you may be caught with your trousers down!!