Take a look at the below thread and try to find something in the 5% range.
If you finance $89k @ 5%/60mo your payment is $1680 so roughly $200 more than the lease first mentioned above above. But after 39 months your loan payoff is roughly $34k compared to a $54k RV on the lease.
Even factoring in the additional $8k in monthly payments made you’re still $12k ahead going with a loan vs. lease.