mickoo
Western Thunderer
Yep, just like that.
I'll check out the US spikes. Thankfully there's not too much of that style.
One other source of the 'r' clip discussed at West Mersea a few months back in one of the many tangental discussions LOL, is stationary staples, these are about the right size if you get the smaller ones and can be bent quite easily with flat nosed pliers to represent 'r' clips or even US track spikes, but the metal is too soft to be 'hammered' home like the Peco spikes, you would have to pre drill if you used staples
For the chair you could even use thin brown card as Jordan suggested and spike to real wood sleepers, as opposed to the trimming of existing FB chairs, if your only doing a few in a length then maybe trimming the existing chair is the easiest and quickest option.