are you planning a trip to the new world? PS: it's already been discovered....all the gold went with the Spaniards
pretty sure you could make one yourself with a bit of creative thinking....if it's for fancy dress, you could buy a plastic plantpot and cover it in felt.....the brim could be a plastic paint pot lid.....stick a big buckle on and a belt around it.....instant Puritan
Bet you could get one from one of those Civil War enactment groups...come to think of it, one of the chaps at last Techenders did that sort of thing I think......see if I can remember his name......brb It was @bryandsi I think
Steeple hat.. http://casiberia.com/product/renaissance-hat-high-crown/gb3953 Or leather.. http://www.southernswords.co.uk/heavy-leather-renaissance-period-wide-brim-high-top-hat-5074-p.asp
I know a milliner, but he's in Sydney & works for Opera Australia. He's very good but it may be a bit far for you
watford gap is north of luton near long buckby west haddon and braunston just below the m45 next to the town of watford in northamptonshire :}