Debian exim mail server support

Last night we had a debian, exim mail server have hardware failure. We have a backup file server with client email and directories we want to connect to with a backup server. To get us back up and running we have decided to use an existing server used for spam and virus filtering but found the exim version on the file server has newer version of debian than the spam filtering server and caused a nfs incompatibilty issue. We have updgraded the debian and kernel and believe the nfs incompatibility issue is fixed but still are working through dovecot issues. We also have a hp 2950 server we want to be the replacement server but we are running into network driver problems with debian 4.6. We will need assistance in setup exim as soon as possible on this server too. We need your expertise and eyeballs to help us get the servers back up and running asap. If your bid is lower than the project ends up taking in time. We will be fair and compensate you accordingly