Great stuff Mike
Glad to see things have worked out so well!! Test shots look great!! With a larger scope at faster f3.8 you will now be able to take a lot more subs in a night which should help negate the disadvantage of not having a permanent setup!!
I'll be interested to see how you go with the guidescope, depending on any differential flex - the CF sandwich tube should help minimise this and having a fast f-ratio (shorter subs) should also help. I'm planning a similar setup guidescope-wise - will you be taking the new scope to IIS Astrocamp this year??