some updates at last.
Fitting lotus elise seats. With the roll cage fitted space is very limited. I could get a bucket seat in the drivers side but not the passenger side, so I decided to see how a set of elise seats would fit as they have very little padding. I modified them for 4 point harness seats. The passenger side fitted first and used 3mm ally to make up brackets a single from bracket and 2 side brackets, can just be seen in the pic before final fitting. The seat fits perfectly and just clears the door at the shoulder. Maybe not to everyone's taste, but they can be changed later very easily. Fixed passenger seat not on runners. The drivers side I used the runners and made up slightly different brackets (pics later)
Also the rear window fitted. definitely a 4 handed job, you need someone to hold the glass in place as you feed the rubber round. Fit rubber to the window frame first. Start at one side and work the top and the bottom together. You need the special tool to fit the filler or you can make one (which I did) out of a coat hanger that worked just was well, but you definitely need a tool a screwdriver will not do ( tried and kept on pushing the window through so had to restart)