Router / Repeater configuration for range extension?

HELP! I just purchased my wife a refrigerator with a wi-fi-enabled panel, and it's too far from my home office to see my router (she wants Pandora in the kitchen). This is what I have available:

1) Main internet connection - Belkin N750 DB Router
2) Old router (can be used for this project) Belkin Wireless G Router (F5D7230-4 v.6002).
3) Edimax EW-7228APn access point
4) Samsung RF4289HARS refrigerator (802.11-b/g only)
5) A couple of PCs, Kindle Fire, and Smartphone that aren't a problem to get working.

The N750 (with my incoming broadband connection) is located in the office upstairs and across the house from the fridge. It's an old (>130 years) house, and I suspect that some old layers of lead paint are making a dandy RF shield.

I bought the Edimax access point because it supports "Universal Repeater" mode. In the process of trying to set it up, the folks at Edimax said that the main router (the N750) had to have wireless bridging turned on, but it doesn't support it.

The old router (the OTHER Belkin) DOES support wireless bridging, and I downloaded and flashed all three devices (the two belkins and the edimax) to their latest firmware to get any latest-version features. I assume I can use the OLD router for the wireless bridge, and connect it to the NEW one (wired? wireless?).

I think that what I need is to have the N750 plugged into the internet (duh), and the old belkin connected (wired) to the new one, enable wireless bridging on the old one, and set the Edimax for universal repeater mode. If that's not correct, someone please stop me before I waste any more time.

My question after that is about configuration. What device(s) should have DHCP enabled? What about gateway addresses, etc.? In terms of distance from the office, it looks like the Belkin 750 will be in it, the OLD belkin will be connected to the new one (and thus, also in the office), the Edimax will be on a landing, or somewhere else downstairs, and the fridge, of course, is also downstairs. So, the communication chain I'd like to establish is:

Fridge <-> Edimax <-> Old Belkin <-> New Belkin (N750) <-> Internet

When the Edimax is in "Universal Repeater Mode", will the fridge see the Edimax's SSID, the OLD Belkin's, or the NEW Belkin's? I trust that each device needs its OWN SSID(?).

The Belkin 750 is IP address 192.168.2.101, and is currently set up to serve addresses 102 through 200 (though 102 through 110 should be plenty here in the house). The fridge can't manually connect to an access point, so whatever is closest to the fridge has to be broadcasting its SSID. I would like to be able to use WPA2/PSK from end-to-end, but I'll be satisfied to just get it working on a wide-open network first!

The OLD Belkin is 192.168.2.1, and is set to serve 2 through 100.

The fridge is set to 192.168.2.202

I'm pretty tech-savvy, but setting up networking equipment beyond the traditional wireless router setup has been a bit confusing! Any help that someone could provide would be most welcome. Thanks in advance. If there's any more info I need to provide in order for someone to respond, please let me know, and I'll get right on it. Getting this working is a "high priority" task if you know what I mean.

Larry