Thanks for the comments guys.
I really enjoyed the E100, but it did seem to go on forever, taking me 8 weeks to complete!
And I still need to do the figures and a dio base.
SF, spot on with the 128 L90 as far as I'm aware. I used a JR Jagdtiger barrel.
Haven't a clue about the engine though. It would certainly have needed some serious grunt as it weighed in around a 100 tons.
Progress
I've been scouring my references for an interesting scheme to go with on with this build as I don't fancy either of the options in the box, especially as one of them doesn't even cite the unit!
There are some great pics in the Jagdwaffe installment covering jet & rocket fighters of Ofw Friedrich Gentsch's machine from KG54, however the only decals I could find for this are from the long defunct Meteor Productions, see the link below.
http://www.aircraftresourcecenter.com/Rev2/1101-1200/Rev1111_CED32072/rev1111.htm
The colour call out for the upper surface colours are completely wrong, but there's a good profile in the Jagdwaffe book, so not a big issue.
However, I managed to track a set down to a vendor in Holland, so with a bit of luck....
I've also started on the pit, I'll post some pics later.
Karl