I would be very grateful to receive your trust, generous support and monetary donations.
「絶大な」＝ enormous / tremendous / generous / great
「応援」＝ support / assistance / aid
「得る」＝ receive / obtain / get / win
「信頼」＝ trust / belief
「絶大な信頼と応援を頂き、寄付金を得ることができたら宜しいと思っています。」＝ I would be very grateful to receive your trust, generous support and monetary donations.
イギリス 
