125-200cc 07 WR125 questions

So I find a killer deal on an '07 WR125 and I 've seen all the discussions about upgrades and the only questions I have are this....Can I use the Suz. RM needle in this older Mikuni? What pv spring works best for woods riding/Enduro? I already have a stator from a Cr that needs the ignition coil rewound(burnt out-no output) and figured I get the stator set up for lights at the same time...who do you recommend?
Thanx
Guscycle

Carb on 07 is different then the 09 and up
I am liking the stock and silver combo.

Rickystator.com is a good place to have the CR ignition and lighting stator wound.

Ricky stator doesn't re-wind exciter coils. I rewound my own and it worked fine and winding for lights is a snap.

I knew the carbs were diff. but had hopes that it would work....just got through rebuilding motor..jetted a tad fat for break in cycle,but motor feels smooth. I guess I can't do much until I get some break in done but would like to have the stuff on hand to get it dialed in.I like /need a little more on the bottom for this friggin' Florida sand...hmmm upgrade to 144 may be in the future.