Hiya Gearheads

I had my cv boots replaced about 2 yrs ago ( also 2 joints ). now all my
boots look good. no cracking etc but the boot under the starter is losing
its lube from the outside or small side. I don't want to let any of these
joints wear excessively. what are my options? could I use a needle and pump
lube in thru the boot and then patch the needle hole with a bike tire patch?
could I use a cable tie or 2 to stem the leakage?

I don't think I want to change the boots myself. how much should I expect to
pay if I have a shop change the boot(s)

thanks for any advice

ed
87 2wd gl