I must say that I have to agree with Pete on this. I would rather spend a little extra even on a budget than have to buy a new engine. Just some other things to consider since you are, by the time you buy filters nuts, bolts, plugs everything you need you probably spent about a hundred dollars. And if your idea doesn't work then your out that hundred (or whatever it may have cost) and back at square one.
Another thought if your total cost is a hundred dollars your a third of the way there for the
AMSOIL Single Mount By-Pass Filtration System BMK-21 These kits are made of superior construction and are very dependable. Under normal operation the EaBP filter can filter all the oil in your truck in about 30 minutes or less. With a high level of effciency this kit has the ability to remove particles less than one micro. When using the kit with AMSOIL motor oil and EaO filters the EaBP (bypass filter) can be changed up to 60,000 miles or longer based on oil analysis.
We offer for the BMK-21 kit aluminum billet oil fill and oil filter caps sold separately that you were looking for also.
If I can provide you anymore information about this kit or maybe of any other service please don't hesitate to ask.
Thanks