No problem going with an LR E tire if indeed your rim can handle the added psi, we had to take the tire off our wheel to find psi stamp. Secondly, unless you need tires asap, any reputable tire store can order whatever brand and size you need, don't fall for that's all we got from the tire dealer who will always sell the tires that give them the highest profit margin first. We have purchased tires online as well from DiscountTireDirect.com and had them delivered to our front door via UPS in 3 days. Took them over to our local Discount Tire shop where the were balanced and mounted.