I got out the engine mount and started working on getting it installed. This involved a fair amount of research online.
I also got the forward top skin out because I originally thought it need to be on when fitting the motor mount but I learned this was not required.
On a side note I decided to get a new forward top skin from Vans and work on shaping it more before I dimple it to get a better fit where it's riveted to the longerons.
Motor mount temporarily in place and working on forward top skin fit: