Appreciate for the quick response and quote. Do you mind me asking a few more questions before I decide on the models to get from you. What is the different between the below hoods; 1) RH-90Er vs RH-90ERi 2) RH-382 vs RH-390 Which is easier in term of maintenance? RH-90Er/RH-90ERi vs RH-382/RH-390? Need a quote for RB-3Si and RH-390 Thanks in advance. Alex