Since some people think Alaska is another country or out in the ocean next to Hawaii

When in fact we are in the same postal and shipping zone as the West (CA, OR, ID WA) It is hard to find companies out there who will offer decent shipping rates to Alaska.
I am wondering what companies selling diesel accessories will ship to Alaska through the USPS or DHL for a better rate than UPS. We can ship to the lower 48 UPS ground but not ground to here and usually it has to be "Next day air"
I want to eventually buy things to improve the performance of my truck and I want to do it reasonably and shipped for a reasonable rate and not get racked over the coals to get it here. If the product is good and the company selling it believes in good customer service, then it would make sense to ship at a good rate for everyone.
I know it costs a little more to go certain places than others. But come on now, if I can send a box to Pa say for 30 dollars USPS it will be the same from there back to here; makes sense doesn't it. For some reason people think the boat only comes here every so often. When in fact we do have Roads and Airports people and NO it is not constantly a barren land of ice and snow, only in the high up mountains is it like that year round.
So please let me know what is out there for good shipping rates on heavier items. I am looking at upgrading the exhaust manifold first, one site said 40lb ship weight and another said 10

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3rd owner of a 2001 Forest Green Metallic Chevy Silverado LS 2500HD CC LB Duramax LB7 low miles w/PPE Boost Valve, BD Power LH exhaust manifold, Merchant Auto high idle. Firestone Ride rite airbags, Bridgestone 245/75/R16's summer and siped Toyo Open Country 265/75/R16's in winter

Plan on adding a pyro and boost guage set and eventually a tuner which I am trying to find the right one for my vehicle and price range. Looking for better fuel mileage