Hello,I'm looking for new tool help..I've been using sorby tools that I've had for 25 years and they work great..I don't have a low speed grinder so my bowl gouge is going away faster than it should I guess..I have not been turning for 25 years so the tools sat for a long time..I have been turning for the last 2 years..I really like making bowls so I'm considering a Thompson 1/2 in bowl gouge.Does it make sense to buy a bigger one also for roughing bowls?? I also want to buy a round nose scraper for finishing the inside of bowls but I didn't see one in the Thompson line..Any suggestions on the best all around size for a scraper and brand..??Also can someone recommend a low speed grinder and wheel for sharpening??THANK YOU for your time..