Old OSC user. Looking for add-ons

Hey guys I am going to be building a website for a local 4x4 truck shop, selling over 5000 different items on there website. I am new to ZenCart but I was an avid OSC user but.... well we know how that goes sometimes. The shop has been in business for years but has never gone online with their sales. I will be building this from scratch.

Just looking for a few basic add-ons that you guys can recommend to get me started. Looking for a couple good marketing add-ons, and add-ons to simplify to the adding of the products.

Also looking for add-ons that would make the check-out process 1 page if at all possible.

Thank you for any help in advance!
-CW

Search through the free software add ons link, above left

Easy populate works here also

Zen Cart doesn't need as many addons as I understand osC used to in order to have a fully functional shop. Have you tried out a test installation of ZC with the demo products activated at installation? They will teach you lots of things about the stock capabilities. You will want the "Fast and Easy Checkout" mod. There is another one-page checkout mod that is reputed to be unreliable.

Also read the tutorials for tips on custom template creation and other subjects.