Obviously, your passions run deep and I hope will you will explain them to me one day over a pint if ever we meet.
Pleasure

- as long as your buying the first round
I feel uncomfortable with you casting an unfair light on one really fine Englishman, in Halstead.
Not sure why its unfair - I have never met him and got all I know from Pistonheads see
http://www.pistonheads.com/features/reliant/ 
Why don't you speak with Stewart directly and find all the real facts of his history? I am sure you will enjoy that and hopefully make a friend. I, for one, would be grateful for your research.
Better still I could invite him to join Talk Morgan

Friends tell me it is a very neat job and it is advertised as producing 186 bhp. (Tho that is likely too much for a non-LSD axle and the skills of a normal driver.)
Come on Lorne that's less than a Plus 8 let alone an Aero.

However, none of the above suppliers recommend their turbo conversions as a wise choice for a Zetec engined road car. Is there another set-up you are referring to?
Mogsport do

If i had a casst iron Zetec, I wouod deeply consider a non-turbo alternative. I dealt with a fellow by the name of Alan Fereday of Fereday Cars when I was searching for a big SPAL fan. He does Zetec upgrades to a perfect bhp for a 4/4 starting at £700.00. This type of Zetec upgrade is well proven and no risk.
Yes there are lots of non turbo alternatives but most of the are high rev low torque more suited to racing. I know as I had the first Morgan Zetec to have a throttle body conversion. 155 BHP but needed to be revved to get the most out of it.
Burton Power
https://www.burtonpower.com have lots of useful tuning guides for all Ford engines (look under Technical)
What power and torque does the Fereday conversion produce?
