I hope you wear a mask when cutting iroko john the dust will bugger up your lungs.I've know some lads who have worked on this wood before all this health/safety came in and now the suffer with skin and breathing problems.of course all hardwood is hazardous but iroko seem to be one of the worst.I've work with it when I 1st started work after leaving school and boy does it give out dust. horrible stuff. anyway john you look after your lungs mate.it may not affect you now but certainly will when you get to my age! by the way I don't suffer with even though I've been a welder most of my life.
I know what you mean J, it's really tricky getting hardwood here in the UK! I ordered my first bit from Travis Perkins the builders merchant (not sure if you have em up there in Edinburgh) it was a piece of white oak 1"x 2" and long enough to get two necks out it. It cost £18.00 and took about a week to order in. Since then I've found a sawmill within 45mins drive of my house which has racks of offcuts and turning blanks etc. Still quite pricey but saves waiting! Have a look on ebay too. I was surprised how much there is if you search 'hardwood timber'. Good luck.
I buy 45mm x 20mm oak from a builders place in England when Im down that way.
Its £1 a foot and already perfectly sized for CBG necks to boot - what could be better? :o)
If you get stuck let me know - I will be passing your door a couple of times over the next month so could drop some off for you.
I suspect you want something sooner, but its worth considering in the long run - I buy 100' at a time and it generally keeps me in necks for 6 months, which saves an awful lot of running up and down to the timber yard!