Seeking Opinion on Crawl Space Insulation

[David Lee Hall, III]

Seeking an opinion here.

I am remodelling one of my places. The kitchen is a mixture of original house (circa 1900) and addition (unknown). There is a hole punched through the original foundation that is sizable but not really enough room to crawl through. Supply and drain plumbing run through this space for the sink & dishwasher as does the gas stove feed and some electrical. The crawl space was not really properly constructed in that was build with some basement concepts and come crawl space concepts. e.g. the insulation was in the joists with facing down - yet the mechanicals below that and with the opening to the basement, it is a "semi heated space" - which is good because the water lines are not insulated. A normal crawl space insulated in this manner would have vents and be a cold space. The floor is out of level and there was some rot from a dishwasher leak over the years so I am pulling up the sub floor, sistering joists for a level floor, and re-installing. 

My question is on the insulation. As supply lines run through here my thought is to put a vapor barrier on the ground (none currently) and insulate the crawl space walls to make it part of the living space that is the basement which it is open into. My opinion seeking is on the cinder block wall insulation. Given the space is only 2' high, getting foam board in and glueing it onto the block would be difficult. I like the idea of a C-Film wrap (C-Film | Super Six™ Basement Wrap Material https://polytarp.com/c-film/) that I saw in a video a few years ago, but that doesn't appear to be available in the states. I was planning to fill the sill/joist space with foam and kit any cracks with it as well to make air tight. So my question: any thoughts on insulating the crawl space walls and recommended products or suggestions?