This seller has listed several 8 ft radius GRS points which may be of interest to somebody with suitable locos and rolling stock capable of operating over them.https://www.ebay.co.uk/sch/i.html?item=394435659824&rt=nc&_trksid=p2047675.m3561.l2562&_ssn=jahai8911 (https://www.ebay.co.uk/sch/i.html?item=394435659824&rt=nc&_trksid=p2047675.m3561.l2562&_ssn=jahai8911) link will hopefully be to the sellers ebay listings thus showing all of the points LH, RH and Y