I haven't done MESO 1 but I have had to modify chin-ups in the past at home. One option is to use resistance bands and hook them somewhere high and do lat pulldowns. You can also do modified chin-ups if you have the equipment. This web page has an example:
http://tcfitnesschallenge.com/chinups.html
It really useful for me. Thanks you for the reply.
thanks, after some research, I ordered the STS push/pull up bar with new stretch bands. Cathe has the best stuff.