Hi Beneviro,
from right to left it was possible with my 2011 P4Supersport. Costs was 3K€ for the work without any costs for the parts. She was brand new and MMC changed all the built in parts for free againt LHD parts. So the other way round should work as well.
Here on TM are people with much more knowledge than me about what you need to purchase (new steering system, new dash, may be pedals, carpets, wipers (with opposite stop) drive light reflectors etc.
If the car now should have got a different sports manifold take note if the RHD steering column has enough space. Some of the offered RHD manifolds look so „artful“ wrapped around the steering column because of this space issue while my manifold was built in a straight and easier manner, having the column out of the way.
TBH if you see the used car prizes for RHD Morgan I‘m wondering if it makes any sense seen from an economical POV.
