I had my timing belt changed for my 2007 Odyssey i...

I had my timing belt changed for my 2007 Odyssey in here, I have learnt a lot trick about this, and summarize here.
First of all, I did search on ebay about the timing belt kit, and found the following things cost only ~320$ and they shall be changed together with timing belt:
Timing Belt(Honda / 14400-RCA-A01);
Water Pump & Gasket(Honda / 19200-RDV-J01);
Serpentine Drive Belt(Honda / 38920-RCA-A03);
Idler Roller / Pulley(Koyo OE / 14550-RCA-A01);
Tensioner Roller / Pulley(Koyo OE / 14510-RCA-A01);
Hydraulic Tensioner(Honda / 14520-RCA-A01);
Front Camshaft Seals x 2(Honda / 91213-R70-A02);
Front Crankshaft Seal(Honda / 91212-R70-A02).
Service advisor (Anthony) offers ~800$ for replacing only the first 3 items, I asked to replace all the seals (the last two items in above list) as well, since they could be wear out, and the advisor asked for 25$ more. With some negotiation, they give me a 50$ rebate and a rental car free of use. They only have one of the Tensioner in the inventory, that costs another 145$ by itself, the advisor suggest to check if it is not leaking, then no replace. It ended up not leaking. Overall, it is a good service, and Anthony is a very nice guy.
Compare to Folsom lake Honda, they offers 1299$ without water pump(I guess they will change all the tensioner and pulleys), but extra 299$ for the water pump. There are so many tricks and each dealer is playing them very differently. The more you research and compare the more you save.