Or if you want to DIY, buy a rubber "stable mat" and then cut it.I use old pieces of astro turf in the back of my 90 it works well
When you say size and shape.... probably but there are different fittings.... I don't think the seatbelts fit the same as they did in earlier 110.. and you may find the mat is cut to take that into account (some have holes in)I suppose that is an option. Doubt there is much difference with the 'acoustic' stuff anyway and given I'm going to Dynamat the floor that's a fair point.
Did we solve the original query though - is a Puma 110 rear floor the same size and shape as a tD5 floor?
Probably not what you want to hear, but +1 for the stable mat, it really does make an excellent load bay liner.