yep, MKS 02 (metalized polyester film) from wima is OK, your 2 options as I see it with WIMA are the 1uf MKS 02 in the 2.5 mm lead package 50vdc. below are measurements in mm
1.0 µF
5.5 (thick to you probably)
10 high
4.6 wide
2.5 between the leads
you dont need anywhere near 50VDC rating, but you dont really get low voltage film caps. the above are films, but are generally used for decoupling rather than filtering (would still beat electrolytics IMO) look for the MKS 02 PCM 2.5 package range for the above
but a better solution if you can find is the wima MKI 2 (PPS Metallized Polyphenylene-Sulphide) which is a higher performance cap and therefore recommended for filtering as well as decoupling or bypassing high speed circuits
for this
1.0 µF
7.2 (thick)
13 (tall)
7.2 (wide)
5 (lead spacing)
these will do a better job, will still fit side by side provided you dont use insane thick hookup wire. they have ver short leads, so I would recommend using some thin (~28awg) wire to hook them up to the pins, so you can have them lying flat on the 'floor' of the LOD housing. they wil only fit in the larger type LOD casings favored by ALO (and myself often)
these are MKI 2 in the PCM 5 package range.
dont get the grey vishay MKS, they suck for analogue signal. the vishay MKP in the blue casing would do, not sure which model because I tend to use wima or evox/rifa over vishay. evox rifa are hard to find though, easily found at elfa though. for them you want the same, PPS or PET (thats their polyester film model)
sorry dont have the exact model numbers for these mate, datasheets are your friend. farnell are convenient, but have a crap range and are very expensive. if you need some other stuff as well and are in europe, I highly recommend elfa