Maggie 1.6QR vs 3.6R and Room Size

Hi,
I've recently moved house and my new listening space is 60'x32'.
I'm using a small monitor speaker (QLN Signature Splitfield II's) and they do a fair job in this larger room, but not great, which is understandable given their small dimensions.
I'm looking at Maggies as the probable choice for an upgrade, but I'm leaning toward the 1.6QR due to cost. My budget is around $4, so if I went for the 3.6's I wouldn't have much left for amplification (current amp is a CJ CAV 50 integrated).
So the question is this: will the 1.6's work in this size room, or should I wait and get more cash together for the 3.6's?
What kind of results might I expect with the 1.6....is there a possibility of ribbon problems when playing at spl's high enough to charge this size room?
Also, does anyone have experience of using the 1.6's with 50w tubes like the CJ CAV?...if this is too small, can anyone recommend a good tubed partner for the 1.6.

I do not have the opportunity to audition these speakers, so would have to commit and buy a used pair on AG then hope for the best.

Lastly, I have a pair of Apogee Caliper Signature II's that have some ribbon damage on one speaker...does anyone think it might be better going through the hassle of having these repaired?....how do they perform in a large room and how do they compare against the 1.6QR

So many problems, so many questions!!

Many thanks in advance for input and insight from a knowledgable audiophile.

Rooze