Apparently this is the week for suspension questions... Anyway, I have a specific application I could use some guidance on.

My 03 Tundra (V8, 4x4 w/TRD package) is used for a lot of towing. It also rides softer than I'd like, and when I hitch up my trailer the back end sags a fair amount (heavy trailer). It also doesn't take much to bottom out the rear.

I'd like to add about 1.5" of lift to the standard height, and stiffen up the ride so that it (a) handles more like what I want, and (b) doesn't sag as much in the rear.

I've been considering an add a leaf kit, and there are a few out there (Wheelers Off Road has a couple in particlar I am interested in). I'll also replace the shocks since I'm at almost 80K on the stock ones, and of course the front will need at least 1.5" of lift if I do the rear. What recommendations do you all have on the best stuff to use for this application, and why? I do miminal offroading, so this is really just to make it a more burly street truck and improve my ability to handle a heavy trailer without bottoming the thing out on decent bumps.

Does anyone have experience with the Wheeler products, and are they worth spending my money on? They seem like a decent value for the price.

I'm also specifically interested in a front coil set they sell, which raises that about 1.75" and stiffens it up (perfect). They sell the coils for $200, shocks for another $131, and the set mounted together for about $480. Other than needing a spring compressor, is there any reason I can't just buy them separate and spend a little extra time on the install to save money? I've never installed coils before, but have a friend with the right tools, so I'm not sure what that extra $150 is going towards other than the brackets and pre-assembly (wouldn't I be able to use the original brackets on a new shock and coil?)...

Thanks in advance for the input!