Welcome to the forum!
Order a
TF-100
The only other real option for a test kit is a Taylor K-2006-C. Be careful comparing prices because the K-2006 comes in sizes, designated by a letter. The basic K-2006 has .75oz bottles. You need to get the K-2006-C to get the larger bottles that you want.
I also have the
Speedstir. It makes testing much easier.
I suggest you read
ABC's of Pool Water Chemistry and consider reviewing the entire
Pool School eBook.