20.5x8.0-10 Tires - Go w/ Load Range C, D, or E?

[CZSteve]

I just bought two '96 GTX's on a Shoreland'r dbl trailer and plan on ordering a new set of wheels / tires; plan on keeping the originally spec'd 20.5x8.0-10 (205/65-10) tires unless anyone suggests differently - pretty tight tolerance as is with the fenders.

Shoreland'r shows a Load Range E as the spec for this trailer but that seams to be very much overkill.
Dry weight for each ski is 576#'s and trailer is ~ 500#'s.
Price is not an issue as it's a very minor difference between C, D, or E; I'm thinking of ride quality / bounce impact.
I would imagine the E rated tire @ 10ply would be the stiffest and give a bouncier ride compared to the others.
Thoughts?

Thanks,
Steve

 

[Dr Honda]

If the price is minimal... get the E's.

 

[CZSteve]

I really am generally past wanting / needing fluff and believe in Form-follows-Function but still do appreciate form...

The following alloy wheel is not much more than a galvanized steel wheel and I think would look quite sharp, especially if we re-paint the trailer in a nice black - $240 shipped for the alloy pair.
http://www.trailertiresandwheels.com/site/1284278/product/B20510EAWS5106545

Or we can get a galvanized pair for $200; I'm assuming it's the same Kenda Loadstar tire.
http://www.trailertiresandwheels.com/site/1284278/product/B1023

I would assume the lighter sprung weight (yep, I know - reaching ) of an alloy wheel would be advantageous and better for a marine environment.

Any functional downside to an alloy wheel? Thoughts?
Anyone have experience with this site? E-Trailer's cost for the same tire on a galvanized rim is $224.

Thanks,
Steve