Totally appreciate the assistance provide by FRF in Swansea this afternoon.
Been provided with the information that I need in relation to the comparison of my 855AWD VIN and the V70 AWD R VIN which I was able to provide them.
The information to say the least, is superb news and exactly what I was hoping for... so now time to start planning the engine replacment in terms of purchasing costs £€£€£€£€£€£€£€£€ so need to start saving somewhat (a lot!)
as will do the installation of parts myself next year - so will save on labour costs in that respect.
So next year I should have an 855 AWD R completed around about by Sept / October and then get it reclassifed as a 2.3T AWD.