Hi there if you insist on buying a chuck make sure you buy one with replacable thread inserts so when you upgrade your lathe you only need to buy the insert if the threads are different and not another chuck. i turned many bowls on a full size lathe before i bought a chuck. It is very easy to spend too much cash on woodturning stuff. on a small lathe you have two options. Screw blank to faceplate then turn the outside with a flat bottom, you now have two options. 1 turn it around and screw back on the faceplate making sure you centre it well; hollow out the inside leaving enough thickness at the bottom to miss the screws and leave a decent thickness of base, unscrew from faceplate turn a little dome to fix to your faceplate then place a piece of folded over sandpaper between the inside of your bowl and the dome, bring up the tailstock and centre it on the bottom of the bowl, turn away the screw holes leaving just a small stub in the middle to carve off. 2 after turning the outside screw a plywood disc to your faceplate then using a hot melt glue gun glue the base to the disc, turn the inside of the bowl, prize off the bowl and then you only need to clean off the glue with a chisel. Hope this helps Paul