Finally arrived https://ep1.pinkbike.org/p5pb17588532/p5pb17588532.jpg
The Berghaus Stormcloud trousers were amazing very impressed they kept me dry through nearly 8 hours of almost constant rain and I didn't overheat or get sweaty. Normal people sized (if you can call XXL normal) technical clothing is indeed far superior to that available in fat man sizes.
Two polyester baselayers from Mountain Warehouse in Aviemore - £7.99 & £9.99.Rather cheaper than the £25-£35 offerings in the more upmarket shops, and I'm sure that they will do the job just the same.