I think "sceptical" would be a fair way to describe it, particularly if you intend to continue trading. This is mainly because the HMRC cannot vote to modify the FTVA proposal. However, I think it goes further than that - As you refer to C&E you have, I assume, been trading. In that case I don't think the OR can do an FTVA for you.
Can I draw your attention to:
http://www.insolvency.gov.uk/freedomofi ... Part_6.htm
Paragraph 20.46EA restricts the FTVA to fairly straightforward cases, specifically excluding those where there has been trading.
Based upon that, I believe you should be talking to an IP I think if you want to attempt a second IVA. Informally check with the OR first of course.
Ian