Paragon makes a small muffle kiln called a Rapidfire 6 that has a 6"x6" floor that does great for small fusing. It comes with a pyrometer already attached. It should run about $250. I had one and it got hot enough to turn the glass into liquid goo. (>2200F. oops!) I have seen people prop up the top with kiln posts on the side and back and put Fiberfrax in the hole, hook it up to a rheostat and use it as a small annealer. The elements in mine burned out after the aforementioned abuse, but all in all, I would consider it a good kiln to get your feet wet with. Data per Ed Hoy's catalog: Firing camber 6"x6"x6" Electrical 1680 watts, 120v 14 amps Shipping weight 14 lbs firing speed (empty)
1000F in 4.75 minutes
2000F in 14.5 minutes
2000F in 27.5 minutes with 10.6 oz charge
Look for used kilns in your local paper. There is almost always 5 or 6 a year around here. I bought a small 110v kiln for $50 at a garage sale. Also I traded 10 hours of fusing lessons for another small 110v kiln. Lots of people try enameling or slipcast ceramics and get tired of it and sell their kilns. Check with your local pottery/ceramic dealers. I looked on Rio grande's site and the Ultralite doesn't look like it would do the job. they seem to indicate 1500F is a maximum temp, also it seems the cool down would be too rapid. As a rule, you should look for a kiln that is rated for higher temps than you are actually going to use.