Welcome Ryan.Nice to have you join us. Tell us about yourself and send piccies please.
My initial thoughts,but others will come along soon.
1.Why think of changing it now? It will likely last 20 years and 200,000miles
2.Keep it and use Lexus Essential Servicing when it is 5 years old (cheaper)
3.You must have the Hybrid Battery tested annually at Lexus for it to be warranted for a further 12 months/10,000 miles
4. Consider taking out a Lexus Extended Warranty after your initial warranty expires. It will cover you for failure of Mechanical and Electrical parts until RX is 10 years old. And 2 M.O.T. tests and AA Membership.