I have that camera, it is quite versatile and is in my own opinion, a value for money all round camera. I've had mine for around 10 years and have finally found the lenses that I am happy with for field work doing general landscape, portraiture and within reason, architectural photography.
I would suggest a three lens kit of 90mm with reasonable coverage. For many years I used a Schneider Angulon 90mm, but it just covers the 4x5" format, which meant I had very little movements.
Recently I picked up a fujinon 90mm SW (Super Wide) with 100 degrees coverage giving me an image circle of 216mm and uses a 67mm filter ring. I use this lens with a bag bellows. A bag bellows is not an absolute requirement, but I found I was stretching the standard bellows way too much so I now always use the bag bellows when using this 90mm lens. The Shen Hao bag bellows for this model camera are quite cheap and fold flat for carrying.
I have the Fujinon f/6.3 150 W (I think it is a W) it is quite an old lens and runs a seiko shutter, vast amount of coverage and is often my go to lens, also runs a 67mm filter ring. This lens is really handy as it can be reversed and will stay in the camera when folded down. This lens has been inside the camera since the day I bought it. Very handy for a single lens super minimal equipment day.
For longer stuff I finally found a Fujinon 250mm cannot remember the f stop (I'm travelling) but I think it is f/6.7. This lens also takes a 67mm filter ring.
With these three focal lenghts, I can photograph pretty much all of what I wish to shoot, sometimes I wish for wider or longer, but by and large this is what I take with me when I am using the minimal amount of kit.
There are more focal lenghts that can and will be nice to have, but that is what I think makes for a reasonable and versatile lens kit for that camera.
For developing, I have used jobo rotary processing for close to 30 years now, however last year I picked up the SP-445 film developing tank for 4x5" film. I think it is excellent and reasonably priced and since I received the SP-445 tank, I have used this to develop all of my 4x5" film.
Almost any film holders should work for you, just get what is available to you.
Some thoughts.
Mick.
Correction, the 150 lens I described above, does not run a 67 mm filter ring, it is considerably smaller. I seem to remember it is about 46mm or 49mm, whichever it is, I use a step-up ring to 52mm and use my Nikon 52mm filters. The lens stays in the camera when folded with the step-up ring.
Mick.