Buliding my 1000xp to race and need help on what to buy

I getting my 16 rzr 1000xp ready to race in utv rally Raid and some other xc and endro races this winter. Come spring time I want to race in any event that will have me. I have all ready ordered some OMF high positive offset beadlocks to narrow overall width down. I know I will also need a good cage and exhaust. What should I go with on exhaust and cage? I was thinking hmf for the exhaust with their fuel controller and gen4 a/f guage setup. Since a own 2016 model year rzr, no one make a clutch kit for it, and sparks racing says I can and should run heavier clutch weights for a 2015 car, is this what I should do til clutch kit becomes available or leave it alone til then? I know a need amber and blue chase lights and found a source for them. What else should I consider or need?? Doors, cage, exhaust, fuel programmer for exhaust,front bumper, fire suit ,and seats ,,,,,this is my current list.
What I am I missing??? Any help is much appreciated on what to buy aswell! My budget is s $8k-$11k minus the $1900 OMF wheels I just ordered. Trying to make the Nov 14th rally in AL and need to get my basically stock car ready for that aND other pro production class series. Any advice on what to get and buy and how to prep would be awesome.

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