What would everyone suggest arrow wise? I will be shooting a 45lb longbow, have a 28" draw- i have some heritage 150's but they have a 100 grain insert and I fear that may be to much with a 100gr point. Thanks in advance!

Aluminum wise I would say a 1916 with 125 up front....
   Not sure about the Carbons....Give a couple of the Arrows maker sponsors a call and compare what they say....

Won't be too much IMO, and most likely not enough.  I believe you'd have an easier time properly tuning a 90.