I'm sensing that the engine will be utilising the original tooling as it exists now to some degree. My concerns here as I have mentioned elsewhere in another thread is that at the end of Hudson production, the tender shell was made of plastic, not die-cast as for most of time which was from '46' to I think '58'. If the Hudson is done, will a new die-cast tender shell be made?
If you consider making it to reflect a conventional only model then it would need to cost in at not too much more than an EX+ current 326 otherwise it may end up not being attractive to consider. I personally would rather put my money into a really nice original.
Now if it has Legacy etc then that makes it different and depending on cost is worth considering.
Regards,
Neil