73 Javelin brake and suspension project

Thanks.

On the pin - that's the metering valve portion which restricts pressure to the front brakes until the pressure in the rear builds up to a certain point - this was supposedly to ensure the rear brake return springs had been overcome before the front brakes could receive pressure and apply. It's especially important using pressure tank type bleeding or certain other means as you'll get nothing to the fronts if there's not enough rear pressure.
We used to have a small spring clip made for that purpose - it slipped over the pin as you squeezed it, and then once over the pin you release your finger pressure and it held the pin out so you could bleed - it opened the metering valve and held it open.
I don't know what ever happened to that tool - I'll either buy or make one since I do this sort of thing enough anyway and was used to having that little spring clip tool handy in decades past.

Bolt heads in the engine bay? Interesting - that puts the nuts and threaded portion in the wheel well - subjecting the nut and threads to salt, road spray, etc. Odd - but for factory assembly it does make sense - stick the bolts through the valve, then onto the fender and then the nuts are put on from the underside and tightened up. It was likely easier at the factory that way.
Thanks for the photos, etc. - very helpful. Now I need to mark for and drill holes.......... 

I measured the sway bar at 15/16" - she's a large one. Now to order the bushings.

Oh - left strut bracket painted up and reinstalled, new lock nuts, etc. and left strut in place with new bolts and nuts. 

Those hard, short, blue, furniture tacks - hold them with a pair of needle nose pliers and try piercing the sheet metal. Those little suckers are hard and sharp. Usually doesn't take much to pierce sheet metal with those. Have even pushed them through with a block of wood and a pry bar - more coordination required -  like that third had we were suppose to be born with.

A right angle drill, and here I thought you had everything:)

Good luck, looks good.