My information is for C20W and the last HMIs our engines underwent.
Although the quote price is not so high at the end it is around $65-70K, depends on whether there are any CEBs & ADs or other additional works to be carried out.
Fuel pump @2000hrs was $2900.
As far as I know there are only two authorized civil centers for M250 in Europe (in UK & Malta). We use the services of that in the UK.