I considered Suplex but went for Mulfab springs and adjustable AVO's. Vast improvement for not much £.
Personally I wouldn't spend the money on the Suplex front/5L rear, I've driven PJB's car with the full set up on it and whilst it was impressive I don't think it was worth the cost, and I think it's not what you buy the car for. It's a Morgan!
If, as some of the regulars on here, you're minted, and must have the latest, newest everything, then crack on, it's a free country. You can't take it with you, spend it.
IMHO, it is what it is. It'd part of the appeal of them.
You can't polish a turd.