We are busy translating records and over the coming year there should be some new databases coming online. Family Search is busy imaging millions of records so there is a lot of new data on their site which links to the Raduraksti. The Raduraksit site has been moved and you need to re-register if you want to look at the data.. It requires an experienced researcher to connect the dots as one can easily make assumptions that are not true.  The best people to do this are the Latvian Archivists who have been dealing with the data for many years and really can see family connections. You mention you had them do research for you a number of years ago and that you have also obtained data from other researchers,
It may be worth while to send the Archivists the data that you are trying to piece together and ask their opinion.  Since Irina Veinberga died the email address to write to has changed to -

vestures.arhivs@....
As far as a private researcher is concerned you could visit the site of Aleksandrs Feigmanis  -        balticgen.com
and consider asking him to do some research for you. He does charge and it is important that you ask how much it will cost before hiring him. He is a Historian whoc works at the JEwish Museum in Riga and well experienced with Latvian Records.
Arlene Beare
Co-director Latvian Research Division.