I've been using an old door for a base! Now I DO want a dining room table. NEVER did I think of creating a "sewing" leaf. Keeper Husband, for sure! I have a 48" Flynn frame, but that means my "giant" quilt making is done in sections. This idea means it could be done in one go, just have to PLAN where I'm going. Thank you all for the ideas.
Oh, I have a "normal" size computerized Kenmore (Janome in all but name) AND an 11" throat HV Sapphire 835. More throat space is nice, but it took me a year of working with it, before it's all coming together. I used the normal for Twin, Baby and Lap quilts, mainly, because that was my only option besides the floor and tying the quilt!