Not sure what a decent price is for these but this lad seems to make a good job of them as i've seen his other efforts in Racing Blue.
http://www.ebay.co.uk/itm/281031318366?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
Thought it might help someone out
http://www.ebay.co.uk/itm/281031318366?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
Thought it might help someone out