Love quilting on my 15... the bed may be 7" but you have a little more space there because the neck of the machine is much thinner. It uses standard low shank feet, and class 15 bobbins - I took the snap-on adapter off my Brother and use the 1/4" I bought for it. If I found one in a cabinet for $100 here and it worked I'd grab it!! I bought mine off ebay for over $100 in a wooden base built out of 2x4s. It's just not something you find often here... I did find an ugly cabinet at the thrift-store... paid $25 for the empty cabinet alone. I have seen ONE for sale here, in a cabinet, for $200 and it needed to be rewired (but, it had the "rare" knee controller
).
Don't forget to check the wiring for cracks - and when you thread it, the needle threads right to left, and the flat side of the needle faces left.