thats what I ranCrane Energizer pedestal mount roller rocker arms (possibly from redsn95gt above)
Tokicos are fine, MM sells them in their kits. I have been in a bilstein H&R car and it was awesome. I have been in a bilstein stock spring car with full length subframes and it was FAR better than my my stock car with H&Rs and sways. These were each roomates of mine so I spent a fair amount of time in their cars.
i think you are on the right track. Dont over pay for any parts, if you are patient, you can mod successfully with all used parts and pay half the price. on the heads cam swap yes you will need to budget for
24# injectors and Maf, pushrods , headgaskets, oil change, coolant, gasket material, possibly a new timing chain while you are there, etc
you CAN run an explorer upper intake which is just as good as a gt40 upper. you will need a GT40 lower or a fully ported explorer lower. Here in lies the restriction. the explorer actually has the best upper of all of the gt40 family, i.e. explorer, gt40, cobra.
I would just call comp and have them spec you out some strong SINGLE springs that will work with that cam. That is what I did. About 120 bucks if I recall.
In response to some opinions above, I would never hold off on mods while waiting for a stroker. You will be 5k into the motor for any stroker and the boltons that work with that stroker will NOT be ideal for your stock 5.0. Most people who do without HP for that long while waiting for "one day when i get..." never really get to enjoy their car and wind up selling the project before it is finished or soon after.
If you really want more power down the road, Run a mild boost setup and put yourself at 400 rwhp on the stock block. Then your 3 series definitely will not be faster.
what year and model 3 series? If you have a 335i, I would be spending the money there 1500 will have blowing the doors off ANY heads cam mustang, and most street driven strokers.