Ha! We are coming from an Imagine with the exact same freestanding table and scissor collapse mechanism you just installed! I don't know if you plan to have any little ones use the dinette to sleep? But we found that that table will tip if their weight isn't centered. So we added inside the bench seats, wood reinforcement beams, and drilled peg holes into them. Then placed 2 removable steel tension rods across so that the table surface rests on those in addition to its collapsed scissor jack. No more tipping! The 2 spring tension rods just become part of the bed setup and teardown routine. Anyway, be careful of tipping! We are so DONE with dinettes and the 294RK has a 2 seat breakfast bar that really sold us on making this move.
For another Li battery recommendation, I found that the largest capacity group 24 on the market was Lion Energy, at 105A-h. Of course, group 27 or irregular sizes go larger. You can get them at Sportsman's Warehouse for $849 BUT they will not have Bluetooth! Get it direct from Lion Energy online if you want BT to check true % and in/out amps (battery meter at your panel won't tell you much). Lion Energy has it for $899 and always has 10% off coupons and free shipping.
Question: Where do you keep your Li battery? Outside or inside? I plan to keep mine outside for normal operation but then when we put the trailer in storage I will disconnect and lock it inside the passthrough. If you keep yours inside all the time, I am curious where you wired it into...
One more note for anyone upgrading to Lithium on the Delta... The AC/DC converter is a WFCO brand, and it auto detects battery type, so no problem there. But my unit came with RICH Solar controller, so I had to change the default battery from flood to Li in the settings. Other Deltas may come with Renogy solar which I think does auto-detect, so CHECK YOUR INDIVIDUAL UNIT to make sure!